Add a JSON interface for getting EWS queue status
https://bugs.webkit.org/show_bug.cgi?id=126182

Reviewed by Ryosuke Niwa.

The current goal is to add an indicator of how many patches are in the queue, and
the JSON also includes some other information that was easy to add.

* QueueStatusServer/app.yaml: Updated version for deployment.

* QueueStatusServer/handlers/queuestatusjson.py: Added. Returns a JSON with some
bot and patch queue information.

* QueueStatusServer/index.yaml: Added an index for a new query that only returns
bot ids.

* QueueStatusServer/main.py: Map /queue-status-json/ directory to QueueStatusJSON
handler.

* QueueStatusServer/config: Added property svn:ignore.
* QueueStatusServer/filters: Added property svn:ignore.
* QueueStatusServer/loggers: Added property svn:ignore.
* QueueStatusServer/handlers: Added property svn:ignore.
* QueueStatusServer/model: Added property svn:ignore.
Ignore compiled *.pyc files in all directories they appear in when running locally.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@161062 268f45cc-cd09-0410-ab3c-d52691b4dbfc