Codalab

Bug fixes
- Fix several unicode issues with the Python 3 migration (1371, 1376, 1389, 1391, 1393)
- Make netcat and netcurl work properly again, and fix unicode issues (1407)
- Fix account activation and password reset emails over https (1399, 1411, 1418)
- Flush username prompt when authenticating (1409)
- Fix duplicate mount points in default config (1370)
- Fix mapping port to a value not equal to 80 in nginx service (1394)

Features
- Add .limit=10 to wsearch (1353)
- Set autofocus on username when user enters into login page (1340)

Other changes
- Remove SQLite support (1351)
- Remove event table (1375)
- Remove codalabworker package (1402)
- Allow branches with "/" in their name to build on Travis CI (1381)

Changes
- Migrate from Python 2 to Python 3.6. You must now use Python 3.6+ to use Codalab (1014 and 1356).
- Remove some dead code (1354).

Changes

- Added parallel run quota (maximum number of runs a user can run)
- Workers report amount of free disk for monitoring
- Clean up and update documentation (move to readthedocs)
- Fail unresponsive bundles (cleanup)
- Documentation moved to readthedocs
- Updated `./codalab_service.py` to be more flexible and general improvements to deployment

Changes
* 1097: One-click deployment. Now you can use our deployment script to bring up an entire CodaLab Worksheets instance and initialize it properly using the magic of Docker compose, without worrying about setting up MySQL or nginx. Refer to our [update Wiki page](https://github.com/codalab/codalab-worksheets/wiki/server-setup) for detailed instructions.
* Out-of-memory errors now print descriptive error messages instead of Exit code 137
* Container pruning for killed containers improved and hence docker image download issues reduced.

Worker hotfix:
* Prune finished Docker containers from runs more aggressively on worker so it can clear its Docker image cache faster and avoid Docker image download failures

CLI hotfix:
* Don't accept non-ASCII unicode characters in Run bundle commands

Major Changes
Front end redesign and migration

We've ported the frontend codebase to modern react and merged the previously separate git repositories of the backend and frontend into a single repository called `codalab-worksheets` as a result from now on:
* There's no longer a `codalab-cli` GitHub repo. The old `codalab-cli` repo was renamed to `codalab-worksheets` (with the addition of frontend code). All the old GitHub issues of `codalab-cli` and its commit history are now found in `codalab-worksheets`
* The old `codalab-worksheets` repository is now deprecated and has been renamed to `codalab-worksheets-old`. All relevant issues for the CodaLab Worksheets platform have been moved to the new `codalab-worksheets` repository.
* If you've found an issue with any part of the CodaLab worksheets stack, please consult the codalab-worksheets` repository.
* This shouldn't change anything for end users of the Codalab platform.
* If you're managing your own deployment of Codalab, things have gotten a lot easier for you as the `setup.sh` script in the repository root now sets up everything including the frontend, and you do not need to track two separate repositories to stay up to date. Please refer to the updated Wiki for more information on deploying your own Codalab Worksheets instance.

Other changes

* Better error message propagation when jobs get killed due to using too much memory
* Ability to limit which GPUs a worker uses by the GPU UUID in addition to the nvidia-smi GPU index
* Improved unicode (non-ASCII) character handling at API endpoints
* Better error message propagation when an instance alias is used on the Web Terminal CLI
* (BREAKING) `cl add` command format change: destination worksheet is now an optional keyword argument that defaults to the current worksheet and not a positional argument (ie where you'd previously use `cl add bundle 0xae12e .` to append a bundle to the current worksheet now you may use `cl add bundle 0xae12e`)
* `cl work` command now prints a web URL to open up the worksheet rather than a Codalab internal parsable string.