quilt
dev
homecode
Search
⌃K
Links

Changelog

5.2.0 - 2023-03-27

Python API

  • [Added] Validation of package entries metadata (#3286)

Catalog, Lambdas

  • [Added] Add basic support for tasklist in Markdown (#3339)
  • [Added] Object-level validation, frontend (#3336)
  • [Added] Frontend for permissive HTML rendering (#3198)
  • [Added] Confirmation to enable Package Files Server (#3388)
  • [Fixed] Fixed mobile layout for collaborators badges (#3307)
  • [Fixed] Fixed metadata handling for entries without hash or size in pkgpush lambda (#3314)
  • [Fixed] Fixed adding metadata for S3 entries ([#3367]https://github.com/quiltdata/quilt/pull/3367)
  • [Fixed] Fixed crash of the iframe in Bucket tab (3387)
  • [Changed] Edit .quilt/config files with text editor (#3306)
  • [Changed] Refactoring of buttons adapted to page width (#3300)
  • [Changed] Restrict editing user_meta field only for object-level metadata (#3337)
  • [Changed] Tabular format defaults to .csv (#3382)

5.1.1 - 2023-01-25

Python API

  • [Fixed] Reduce backtracking during pip install quilt3[catalog] (#3292)

Catalog, Lambdas

  • [Added] Add 'ECharts' and 'Text' file type switcher, significantly refactor this switcher (#3240)
  • [Added] Add link to file from Athena results (#3242)
  • [Added] Add link to package revisions from package list (#3256)
  • [Added] WebP support in thumbnail lambda (#3275)
  • [Added] Set default search mode in Admin Settings (#3270)
  • [Added] Togggle buttons for file previews (#3290)
  • [Fixed] Fix performance issue (missing memoization) in search results (#3257)
  • [Fixed] Fix fetching and writing settings in Admin/Settings section (#3276)
  • [Fixed] Fix iframe preview width (#3279)
  • [Changed] Make file preview wrapper consistently 100% width (#3245)
  • [Changed] Show collapsed values in JSON viewer (#3249)
  • [Changed] Rename "Metadata" to "User metadata" (#3255)
  • [Changed] Show selective metadata for packages as JSON (#3259)
  • [Changed] Show selective metadata on one line and optionaly on multiple lines (#3284)

5.1.0 - 2022-12-09

Python API

  • [Added] dedupe parameter for Package.push() (#3181)
  • [Fixed] Fix check to determine if a file is a tempfile in Windows with Python 3.8+ (#2900)
  • [Fixed] Speed up import and get rid of undeclared runtime dependency on setuptools (#2994)
  • [Changed] Disable upload optimization for objects with SSE-KMS (#2790)
  • [Changed] Use platformdirs instead of unmaintained appdirs (#3140)

CLI

  • [Added] --dedupe flag for quilt3 push (#3181)

Catalog, Lambdas

  • [Added] Add IGV renderer (#2965)
  • [Added] Use quilt_summarize.json to control Perspective menu (#2744)
  • [Added] Show bucket collaborators (#2756)
  • [Added] Add config field to Perspective scope of quilt_summarize.json (#2781)
  • [Added] Add blocks field to .quilt/catalog/config.yaml to control blocks visibility (#2791)
  • [Added] Add theming with custom square logo and background color (#2793)
  • [Added] Admin: new roles and policies UI (#2819)
  • [Added] Deep search indexing for .pptx (#2881)
  • [Added] Stack Status Admin UI (#2935)
  • [Added] Render package manifests using Perspective (#2971)
  • [Added] Athena default workflow config setting (#2985)
  • [Added] Add missing README to package (#2960, #2979)
  • [Added] View and copy full Athena query by expanding table row (2993)
  • [Added] Create packages from Athena query results (#3004)
  • [Added] Add "Create text file" menu (#3017)
  • [Added] Redirect to last selected Athena workgroup (#3067)
  • [Added] status_reports lambda (#2989, #3088)
  • [Added] Stack Status Admin UI: reports (#3068)
  • [Added] Edit button for text files in packages (#3070)
  • [Added] Add execution context for Athena query execution (#3062)
  • [Added] Add confirmation if now every row is valid for creating package from Athena results (#3073)
  • [Added] Create file menu item for package (#3127)
  • [Added] Expose Quilt Catalog automation API as window.QuiltCatalog (#3141)
  • [Added] Add form to create workflow from quilt config editor (#3158)
  • [Added] Add extended value for ui.blocks.meta in .quilt/catalog/config.yaml (#3175)
  • [Fixed] Fix package creation in S3 buckets with SSE-KMS enabled (#2754)
  • [Fixed] Fix creation of packages with large (4+ GiB) files (#2933)
  • [Fixed] Fix pre-popullation of default dates when using "dateformat" + {"format": "date"} (#3082)
  • [Fixed] Fix editing nested files in packages, fix editing files added from the different location to package (#3117)
  • [Fixed] Fix enum detection in anyOf, allOf, oneOf, not fields and in arrays in JsonEditor (#3169)
  • [Fixed] Fix adding new elements in JsonEditor (#3169)
  • [Fixed] Fix enum free form fields (#3185)
  • [Fixed] User role and admin status caching (#3200)
  • [Changed] Clean up home page (#2780).
  • [Changed] Make pkgpush lambda directly invocable, adjust handling of parameters and errors (#2776)
  • [Changed] Push packages via GraphQL (#2768)
  • [Changed] Improve rendering performance for multi-slide .pptx (#2878)
  • [Changed] Rework package indexing: now package indexes have documents only for current versions of package pointer objects, documents for 'latest' pointers have package_hash, package_stats, comment, metadata fields properly populated (#2897)
  • [Changed] Remove ClientRequestToken (idempotency token) for making Athena queries (#2992)
  • [Changed] Fixed config and docs mistyping: ui.athena.defaultWorkflow should be ui.athena.defaultWorkgroup (#3067)
  • [Changed] Use dedicated columns field instead of first row, fix duplicated first row in table results (#3101)
  • [Changed] Allow pushing empty packages, suggest creating a stub README.md file when trying to push an empty package (#3114)
  • [Changed] Allow to save only latest revisions of files (#3124)
  • [Changed] Render HTML files in LOCAL mode (#3139)
  • [Changed] Support dots in bucket names while using S3 proxy (#3147)
  • [Changed] Support additonalProperties and items in JsonEditor (#3144)
  • [Changed] Initialize Catalog configuration synchronously from QUILT_CATALOG_CONFIG global var (#3166)
  • [Changed] Handle rendering multiple molecules in one .sdf file (#3179)
  • [Changed] Refactor Sentry set-up, add more integrations / instrumentation (#3164)

5.0.0 - 2022-03-14

CLI

  • [Added] --force flag for quilt3 push (#2722)

Catalog, Lambdas

  • [Fixed] Respect prefix filtering when packaging a folder (#2706)
  • [Fixed] Fix package creation failing for some regions (#2718)
  • [Added] NGL renderer for .pdb files (#2711)
  • [Added] Admin: default role management (#2721)
  • [Added] Preview CZI images (#2727)

4.1.0 - 2022-02-22

Python API

  • [Added] Automatically decompress gzip'ed package entries when deserializing (#2677)
  • [Added] Semi-atomic push (#2689)

4.0.0 - 2022-01-31

Python API

  • [Added] Declared compatibility with jsonschema==4.*.
  • [Added] --host and --port parameters for quilt3 catalog.
  • [Added] --no-browser parameter for quilt3 catalog.
  • [Changed] quilt3 catalog now requires quilt3 to be installed with catalog extra dependency (pip install 'quilt3[catalog]').
  • [Changed] Dependencies on flask and dnspython are dropped.
  • [Removed] Deprecated passing subpackage as part of package name for Package.install(), use path parameter instead.
  • [Removed] Deprecated calling of Package.resolve_hash() without specifying name parameter.
  • [Removed] Deprecated PackageEntry.physical_keys, use PackageEntry.physical_key instead.

CLI

  • [Removed] Deprecated passing subpackage as part of package name for quilt3 install, use --path parameter instead.

Catalog, Lambdas

  • [Changed] pkgselect: make directly invocable, always use execution role (#2560)
  • [Changed] Move package listing / querying to GraphQL (#2552)
  • [Changed] Fix performance of countPages in thumbnail lambda (#2616).
  • [Changed] pkgpush lambda now uses dedicated lambda for hashing files to push larger packages faster from catalog.
  • [Changed] Local-mode-specific adjustments to landing page and catalog UI (#2611)
  • [Changed] PDF preview: count pages again (#2621)
  • [Changed] Make Vega download data files from S3 via proxy to avoid CORS issues (#2631)
  • [Changed] Don't support packages in out-of-stack-buckets (#2641)
  • [Changed] Use Perspective library for tabular data files (.csv, .tsv, .xls, .xlsx, .parquet, .jsonl) (#2576, #2691)
  • [Fixed] Improve upload performance and stability, fix some hashing-related errors (#2532)
  • [Added] Echarts renderer (#2382)
  • [Added] Set height for quilt_summarize.json files (#2474)
  • [Added] Add a "transcode" lambda for previewing video files (#2366)
  • [Added] Add object-level metadata editor and move package metadata editor to popup (#2510)
  • [Added] Video previews (#2540)
  • [Added] Audio previews (#2547)
  • [Added] Powerpoint (.pptx) preview (#2598, #2626)

3.6.0 - 2021-10-15

Python API

  • [Added] Validation of package names with handle_pattern in workflows config.
  • [Added] Validation of package entries with entries_schema in workflows config.

3.5.0 - 2021-09-07

Python API

  • [Added] Size of each manifest record is now limited by 1 MB. This constraint is added to ensure that S3 select, Athena and downstream services work correctly. This limit can be overridden with QUILT_MANIFEST_MAX_RECORD_SIZE environment variable. (#2114)
  • [Changed] Decrease size of Package in-memory representation (#1943)

CLI

  • [Added] --workflow argument to push command (#2279)

Catalog, Lambdas

  • [Added] Prepopulate today date for metadata (#2121)
  • [Added] Limit and offset parameters in pkgselect lambda (#2124)
  • [Added] File listing: "load more" button to fetch more entries from S3 (#2150)
  • [Added] Voila Notebooks format support (#2163)
  • [Added] Ability to add files from S3 while revising a package (#2171)
  • [Added] Lambdas for pushing an existing package/creation of package (#2147, #2180)
  • [Added] Custom navbar link configurable via admin UI (#2192)
  • [Added] Adding S3 objects to packages from configurable source buckets while revising (#2193)
  • [Added] Add Athena SQL queries initial viewer and runner (#2197)
  • [Added] Managing per-bucket permissions via admin UI (#2228)
  • [Added] Deep search indexing for Excel (#2247)
  • [Added] Deep search indexing for PDF (#2256)
  • [Added] Add Vega/JSON view switcher for Vega files (#2236)
  • [Added] Subpackage download (#2258)
  • [Added] Per-bucket deep indexing settings (#2290)
  • [Added] Embed: IPC, more debug features, docs (#2314)
  • [Added] Download button on Summary page (#2367)
  • [Added] Validation of package names and entries, pattern for default package name (2364)
  • [Changed] New DataGrid-based file listing UI with arbitrary sorting and filtering (#2097)
  • [Changed] Item selection in folder-to-package dialog (#2122)
  • [Changed] Don't preview .tif (but keep .tiff), preview .results as plain text (#2128)
  • [Changed] Sort packages by modification time by default (#2126)
  • [Changed] Resolve logical keys in summaries and vega inside packages (#2140)
  • [Changed] Embed: load polyfills, bring back prefix filtering, load more (#2153)
  • [Changed] Scan more bytes (first 128 KiB) when trying to detect if a JSON file is a Vega visualization (#2229)
  • [Changed] Use GraphQL for fetching and editing buckets (#2240)
  • [Changed] Use registry for search requests (#2242)
  • [Changed] Enhance quilt_summarize.json format, support title, description and multi-column layout (#2245)
  • [Changed] PDF preview: don't count pages (#2276)
  • [Changed] Default bucket icon changed from Quilt logo to more neutral (#2287)
  • [Changed] Cachebust revision list request (#2298)
  • [Changed] Wrap wide Vega charts with horizontal scroll (#2304)
  • [Changed] Unify package creation and update dialogs (support adding S3 files in both) (#2302)
  • [Changed] Warmer chart colors (#2329, #2338)
  • [Changed] Remove custom button for adding Readme, and re-use dialog for creating files. Fix creating README in package (#3173)
  • [Fixed] UnicodeDecodeError in indexer and pkgselect lambdas (#2123)
  • [Fixed] Catch and display package-related errors properly ("no such package" and "bad revision") (#2160)
  • [Fixed] Crashing pkgselect lambda's folder view on an empty manifest (#2147)
  • [Fixed] Infinite spinner on logout (#2232)
  • [Fixed] Dismiss error page when navigating from it (#2291)
  • [Fixed] Avoid crash on non-existent logical keys in pkgselect detail view (#2307​
  • [Fixed] Error while rendering a preview inside a package (#2328)
  • [FIxed] Bring back missing username at Admin/Users table (#2339)

3.4.0 - 2021-03-15

Python API

  • [Added] QUILT_TRANSFER_MAX_CONCURRENCY environment variable (#2092)
  • [Added] QUILT_DISABLE_CACHE environment variable (#2091)
  • [Added] Support for callable dest parameter in Package.push() (#2095)
  • [Changed] Removed unused dependency on packaging (#2090)
  • [Fixed] Possible downloading of truncated manifests (#1977)
  • [Fixed] TypeError on import when running with PYTHONOPTIMIZE=2 (#2102)

Catalog, Lambdas

  • [Added] Support for EventBridge S3 events to es/indexer (#1987)
  • [Added] Generate and resolve Quilt package URIs (#1935)
  • [Added] Buttons for copying canonical package URIs (#1990)
  • [Added] Additional validation for package name (#1998)
  • [Added] Populate package name with username prefix (#2016)
  • [Added] Link from bucket overview page to bucket settings (#2022)
  • [Added] Folder to package dialog (#2040)
  • [Added] Search lambda: freeform action API and UI (#2087, #2088)
  • [Added] Spreadsheets Drag'n'Drop to Metadata (#2094)
  • [Changed] Tree view for files in package update dialog (#1989)
  • [Changed] Lambda indexing retry logic to not fail content extraction (#2007)
  • [Changed] Number of retries per ES and S3 failure in indexing Lambda (#1987)
  • [Changed] Handle delete markers in ES (#1997, #2000, #2003, #2017, #2023)
  • [Changed] Two-column layout for package dialogs (#2001)
  • [Changed] Show Schema validation errors in text mode (#2010)
  • [Changed] Toolchain: use [email protected] (#2036) and TypeScript (#2043), ditch babel
  • [Changed] Use polyfill.io instead of bundled polyfills (#2043)
  • [Changed] Render JSON with custom tree-like viewer (#2037)
  • [Changed] Set JSON Schema defaults (#2053)
  • [Changed] Don't upload unmodified files while revising a package (#2080)
  • [Fixed] Bug that caused search to miss delete object and delete package events (#1987)
  • [Fixed] lambda previews for time series AICSImage data (potential IndexError if odd number of time points) (#1945)
  • [Fixed] Handle folders in search results (#1992, #1994)
  • [Fixed] Use EncodingType=url for S3 list requests to handle special chars in keys / prefixes (#2026)
  • [Fixed] Empty response from pkgselect folder view for packages with all non-string logical_keys or physical_keys (#1947)
  • [Fixed] "Download Directory" bug that caused 502 or failed downloads when any files contained the "+" character (#2067)
  • [Added] Ability to log in with Microsoft Azure Active Directory via OIDC (#2089)

3.3.0 - 2020-12-08

Python API

  • [Added] Metadata quality API (#1855). For details see this section.
  • [Changed] Improved formatting of package load progress bar (#1897)
  • [Fixed] Crash during load of package manifest with unicode symbols with non-unicode locale set (#1931)

Catalog, Lambdas

  • [Added] Ad hoc package updates (#1856)
  • [Added] Copy packages from one bucket to another (#1932)
  • [Added] Enhanced JSON editor and schema validation for package metadata (#1867)
  • [Added] Preview .pdbqt files as plain text (#1855)
  • [Added] Retry logic for failed queries, minimize load on ES for sample, images overviews (#1864)
  • [Added] Buttons to download packages and directories as .zip archives (#1868)
  • [Added] Search help dropdown for the index landing page (#1838)
  • [Changed] Get package revisions from ElasticSearch, not S3 (#1851)
  • [Changed] Render vega specs smaller than 20 MiB right away, render larger ones after pressing a button (#1873)
  • [Changed] Prefix filtering for directory view similar to AWS Console (#1876, #1880)
  • [Changed] Preview *notes files as plain text (#1896)
  • [Changed] Default search operator to "AND" (was "OR") for more precise searches (#1924)
  • [Changed] top_hash-based package routes (timestamp routes are still supported in the same way) (#1938)
  • [Fixed] Incomplete package stats for empty packages in es/indexer Lambda (#1869)
  • [Fixed] Slow parquet preview rendering (and probably other occurrences of JsonDisplay) (#1878)

3.2.1 - 2020-10-14

Python API

  • [Performance] 2X to 5X faster multi-threaded hashing of S3 objects (#1816, #1788)
  • [Fixed] Bump minimum required version of tqdm. Fixes a crash (UnseekableStreamError) during upload retry. (#1853)

CLI

  • [Added] --meta argument to push (#1793)
  • [Fixed] Crash in list-packages (#1852)

Catalog, Lambdas

  • [Added] Ability to preview larger Jupyter notebooks; warning when cells are elided (#1823, #1822)
  • [Added] Object size to package browsing experience in catalog (#1744)
  • [Added] Total number of packages to catalog Overview tab (#1808)
  • [Added] PDF and other file formats, including .gz ones, to catalog Overview tab
  • [Added] Drag-n-drop package creation (#1786)
  • [Added] Glacier support (#1794, #1796)
  • [Added] Show package metadata (#1806)
  • [Added] Search facets help (#1828)
  • [Added] Admin/buckets: re-index and repair (#1824)
  • [Changed] Case-insensitive package filtering (#1807)
  • [Changed] Show PDFs in bucket overviews (#1811)
  • [Changed] Admin/buckets: adjust SNS ARN input, make it possible to not subscribe to a topic (#1824)
  • [Changed] Show "push package" button when there's no packages in a bucket (#1843)
  • [Fixed] Bugs involving bad or missing package stats during S3 Select calls (#1829)
  • [Fixed] Overly aggressive 40X retry logic in es/indexer (#1804)
  • [Fixed] Semantic bugs in ElasticSearch timeouts (queries now time out properly) (#1803)
  • [Fixed] Missing Helvetica issues for PDFs (#1792)
  • [Fixed] Bulletproof file downloads via HTTP header override (#1787)
  • [Fixed] Previews not rendering in global search (#1787)

3.2.0 - 2020-09-08 - Package Registry Refactor

Python

  • Refactors local and s3 storage-layer code around a new PackageRegistry base class (to support improved file layouts in future releases)
  • Multi-threaded download for large files, 2X to 5X performance gains when installing packages with large files, especially on larger EC2 instances
  • Package name added to Package.resolve_hash
  • Bugfix: remove package revision by shorthash
  • Performance improvements for build and push

Catalog & Lambdas

  • PDF previews
  • Browse full package contents (no longer limited to 1000 files)
  • Indexing and search package-level metadata
  • Fixed issue with download button for certain text files
  • FCS files: content indexing and preview
  • Catalog sign-in with email (or username)
  • Catalog support for sign-in with Okta

3.1.14 - 2020-06-13 - Python API features, fixes, catalog capabilities, backend optimizations

Catalog

  • .cef preview
  • allow hiding download button
  • only show stats for 2-level extensions for .gz files

Python

  • quilt3.logged_in()
  • fix retries during hashing
  • improve progress bars
  • fix quilt3 catalog
  • expanded documentation
  • reduce pyyaml requirements to prevent version conflicts

Backend

  • improve unit test coverage for indexing lambdas
  • fix real-time delete handling (incl. for unversioned objects)
  • handle all s3:ObjectCreated: and ObjectRemoved: events (fixes ES search state and bucket Overview)

3.1.13 - 2020-04-15 - Windows Support

Python API

  • Official support for Windows
  • Add support for Python 3.7, 3.8
  • Fix Package import in Python
  • Updated libraries for stability and security
  • Quiet TQDM for log files ($ export QUILT_MINIMIZE_STDOUT=true )
  • CLI setting of config parameters

Catalog

  • new feature to filter large S3 directories with regex
  • more reliable bucket region inference
  • Support preview of larger Jupyter notebooks in S3 (via transparent GZIP)
  • JS (catalog) dependencies for stability and security
  • extended Parquet file support (for files without a .parquet extension)
  • Improvements to catalog signing logic for external and in-stack buckets
Special thanks to @NathanDeMaria (CLI and Windows support) and @JacksonMaxfield for contributing code to this release.

3.1.12 - 2020-03-11 - Command line push

Python
  • Add push to CLI

3.1.11 - 2020-03-10 - New command line features, bug fixes

Catalog
  • Updated JS dependencies
  • Display package truncation warning in Packages
Python
  • quilt3 install foo/bar/subdirectory
  • Bug fixes for CopyObject and other exceptions

3.1.10 - 2020-01-29

Python Client

  • Fix bug introduced in 3.1.9 where uploads fail due to incorrect error checking after a HEAD request to see if an object already exists (#1512)

3.1.9 - 2020-01-29

Python Client

  • quilt3 install now displays the tophash of the installed package (#1461)
  • Added quilt3 --version (#1495)
  • Added quilt3 disable-telemetry CLI command (#1496)
  • CLI command to launch catalog directly to file viewer - quilt3 catalog $S3_URL (#1470, #1487)
  • No longer run local container for quilt3 catalog (#1504). See (#1468, #1483, #1482) for various bugs leading to this decision.
  • Add PhysicalKey class to abstract away local files vs unversioned s3 object vs versioned s3 object (#1456, #1473, #1478)
  • Changed cache directory location (#1466)
  • More informative progress bars (#1506)
  • Improve support for downloading from public buckets (#1503)
  • Always disable telemetry during tests (#1494)
  • Bug fix: prevent misleading CLI argument abbreviations (#1481) such as --to referring to --tophash
  • Bug fix: background upload/download threads are now killed if the main thread is interrupted (#1486)
  • Performance improvements: load JSONL manifest faster (#1480)
  • Performance improvement: If there is an error when copying files, fail quickly (#1488)

Catalog

  • Better package listing UX (#1462)
  • Improve bucket stats visualization when there are many categories (#1469)

3.1.8 - 2019-12-20 - Catalog Command Fixes and Performance Improvements

Python API

  • Bug-fixes for quilt3.config and quilt3.catalog
  • Performance improvements for Packages

Catalog

  • Updated landing page

3.1.7 - 2019-12-13 - Package Cache

Catalog

  • New LOCAL mode for running the catalog on localhost

Python API

  • quilt3 catalog command to run the Quilt catalog on your local machine
  • quilt3 verify compares the state of a directory to the contents of a package version
  • Added a local file cache for installed packages
  • Performance improvements for upload and download
  • Support for short hashes to identify package versions
  • Adding telemetry for API calls

3.1.6 - 2019-12-03 - Package rollback

API Improvements

  • Implement Package.rollback
  • Drop support for object metadata (outside of packages)
  • Change the number of threads used when installing and pushing from 4 to 10 (S3 default)
  • Misc bug fixes

3.1.5 - 2019-11-20 - Catalog and API improvements

Catalog

  • Fix package listing for packages with more 100 revisions
  • Add stacked area charts for downloads
  • 2-level file-extensions for bucket summary

Python

  • Fix uploads of very large files
  • Remove unnecessary copying during push

3.1.4 - 2019-10-17

3.1.3 - 2019-10-11

  • Bug fix: when adding python objects to a package a temporary file would be created and then deleted when the object was pushed, leading to a crash if you tried to push that package again (PR #1264)

3.1.2 - 2019-10-11

  • Added support for adding an in-memory object (such as a pandas.DataFrame) to a package via package.set()
  • Fix to work with pyarrow 0.15.0
  • Performance improvements for list_packages and delete_package
  • Added list_package_versions function

3.0.0 - 2019-05-24 - Quilt 3 (formerly Quilt T4) Initial Release

This is the initial release of the new and improved Quilt 3 (formerly Quilt T4). For more information refer to the documentation.

2.9.15 - 2019-01-09 - Teams Config

Compiler

Adds a feature to allow quilt config to set a registry URL for a private Teams registry.

2.9.14 - 2018-12-20 - Push Package by Hash

Compiler

  • Adding a hash argument to quilt.push to allow pushing any package version to a registry.

Registry

  • Make object sizes required.
  • Update urllib3 version for security patch

Docs

  • Improved instructions for running registries.

2.9.13 - 2018-11-12 - Fix ascii decoding bug

  • Fix an ascii decoding issue related to ellipses …

2.9.12 - 2018-10-11 - Pyarrow 0.11 compatibility

Make Quilt work with pyarrow 0.11

  • Update Parquet reading code to match the API change in pyarrow 0.11.
  • Fix downloading of zero-byte files