First beta

This release is far better ✨

Syncing information from Github is now async:

• when user logged in, we queue a message to retrieve its starred repos (actually performed by 2 workers)
• periodically, push all users in a queue to sync repo (add new star and delete deleted stars)
• periodically, push all repos in a queue to sync new version (actually performed by 4 workers)

Process for new versions took around 10/15 minutes using the previous method. With 4 workers we can now handle them in less than 5 minutes (for around 1k repos).

Also added a bunch of stuff to monitor error (Sentry & New Relic).

A lot of tests are finally be added, resulting in a good coverage (all critical part are now tested).

The project stills needs some little improvements like all opened issues but also:

• a better responsive dashboard (table are not friendly responsive atm)
• a better responsive menu (right items are pushed away for the viewport)
• a better way to avoid rate limit on Github for new user (because we need to fetch new repos and all their releases)
• maybe a pagination on the dashboard

All changes:

• Retrieve tag from git/refs/tags instead repo/tags #6
• Sync user repo / stars using RabbitMQ #5
• Improvements #9 #12
• Default and error page #10
• Add Sentry #14
• Add NewRelic support #15
• Add a RSS generator #18
• Test GithubAuthenticator #19
• Users & Releases sync #20
• Add Coveralls #21

First alpha

The service is working, but for one person only.
Optimization are sooo needed 🚧

This is a quick version to check that everything work great together before improvements.