Updates on Release Manager web interface

[Romain Bouvier]

Hello,

This message is for projects maintainers who can do xfce apps releases.

Our old beloved Release Manager interface (named moka) has been slightly updated (sinatra 2, ditch of some old gem, and small css update -such wow-). If you have any crashes on next release, please ping me :)

Maybe at some point we will get rid of it, but for now it is still needed !



Romain,