* upgrade celery to 4.0.2
* using Redis for unit tests (sqla broker not supported in Celery 4)
* Setting Celery's soft_time_limit based on `SQLLAB_ASYNC_TIME_LIMIT_SEC` config
* Better error handling in async tasks
* Better statsd logging in async tasks
* show [pending/running] query status in Results tab
* systematically using sqla NullPool on worker (async) to limit number
of database connections
* [sql lab] improvements to the left panel
* better error handling with error notifications
* table is added instantly with a loading image
* Fixing tests
* Fixed tests
* remove network status feature
* only fetch queries if there are started or running queries
* don't use local storage
* remove last network status from actions
* don't remove support for local storage
* address pr comments and linting
* use .some rather than .forEach
* Rename rv => o in the decorator.
* Address comments.
* Permissions cleanup: remove none and duplicates. (#1967)
* Updates
* Rename var and dropdown text
* Cleanup
* Resolve comments.
* Add user to the perm check.
* Add KeyValue model for storing id-value pairs
use it for storing shared queries
* Change string to text and added test
* Put getQueryLink in one place
* Changed migration down version
* Changes based on comments
* Update bcf3126872fc_add_keyvalue.py
* Change in files
* Renamin files and folders
* cleaning up a single piece of lint
* Removing boat picture from docs
* add superset word mark
* Update rename note in docs
* Fixing images
* Pinning datatables
* Fixing issues with mapbox-gl
* Forgot to rename one file
* Linting
* v0.13.0
* adding pyyaml to dev-reqs
