Unsubscribe links striked again!

Massive thanks to Mc Clement for having reported that "unsubscribe" links were (again) not working as expected from notification emails!

I fixed that this morning, so you should now be able to unsubscribe directly from these emails. Thanks for your patience! <3

Url of the fix/PR: https://github.com/openwhyd/openwhyd/pull/198

Fixed email unsubscription

A music lover reported that the "unsubscribe" links from our notification emails where not working as expected. After describing that issue on our open-source repository: https://github.com/openwhyd/openwhyd/issues/186, Adrien fixed the issue and took that opportunity to add more automated tests and rewrite some code for better clarity.

Vimeo tracks are fixed!

Thanks to Maurice Svay:

- https://github.com/adrienjoly/playemjs/pull/22

- https://github.com/openwhyd/openwhyd/pull/175