v.3.0.0

Improvements:

1. The sanic application server is now used.

2. A new workers command line argument was added (CPU process number for requests handling). Service will automatically spin up multiple processes and route traffic between processes. The gunicorn and supervisord support was removed.

3. A plugin system support was added, see plugins.

Bugs fixed:

How to update from previous version:

To update from previous version, replace folders luna_image_store, tests, docs, deploy and update dependencies from requirements.txt.