Codalab

Frontend
- Bump elliptic from 6.5.3 to 6.5.4 in /frontend (3332)
- Use complete uuid to represent the dependencies (3352)

Frontend
- Implement Image UI button & Fix after_sort_key bug (3323)

Backend
- Force worker tags to be alphanumeric (3252)
- Run interactive session as the root user (3343)

Frontend
- Add checkbox to the delete worksheet dialog to prevent accidental deletion (3313)
- Fix schema change detection on the text field (3315)
- Fix the Editing Avatar Permission Error (3270)

Backend
- Add logging for common tasks (3223)
- Add a filter of workers by disk space (3296)
- Fix the "uploading results" error by sending data to keep the socket open (3285)

Dev / docs / CI
- Fix test formatting, run black on all files (3301)
- Unit test - don't expect a fixed time_quota / disk_quota (3302)
- Add tutorial for uploading / downloading bundles (3273)
- Change the comment of AUTO_HIDDEN_DURATION (3314)
- Stress test a worker uploading large bundle results (2) (3215)

Backend

- Undo reference to unassigned container (3255)
- Silence urllib3 debug logs (3280)
- Fix un_gzip_stream import (3289)

Frontend
- Fix bug: Table cell renders as 'Forbidden' instead of 'Loading...' when the user has no access (3250)
- Fix bug: 404 Page shows HTML (3253)
- Fix bug: Manually bind context to `this` (3271)

Backend
- Speed up CLI by lazy loading some imports (3212)
- Fix worker Docker build by pinning golang version to 1.15 (3276)

Dev / docs / CI
- Fix table in "Storage Externalization" section in docs (3262)

Frontend
- Bundle status refresh endpoint refreshes only the specified bundle (3216)
- Add Avatar for Users (3240)
Backend
- Create a test for codalab service start (3147)
- Azure Blob part 1: Add MockBlobStorageFileSystem (3244)
Dev / docs / CI
- Update Competitions documentation (3246)