Start working on the loading
Change every spinner to the new one.
Now the loading css code lives in loading.styl. The specific code like margins are still set on each file (eg. movie_list.styl)
Change the templates to the new spinner.
Merge pull request #342 from iNoX-/loading-uniformization

Loading uniformization
Language cleanup en.json
Added time tooltip to progressbar + player fixes

Added time tooltip to progressbar.
Fixed close button in trailer.
Changed a bit the styles and transitions.
Add hours support to tooltip
Add qualities to movie list