Merge pull request #120 from Paulloz/500onUnknowId

throw 404 instead of 500 when accessing to an unknown room, fixes #118
fix padding for Login in Thumbnails.
fix clipboard style.
Add the right colors for facebook and twitter icons.
add box-shadow on accordion links.
fixes #101
Merge pull request #132 from iMajestic/fixStyle

Fix style

Fixes #117
[quickLogin] remove `room` from `param` hash

Caused a `room` attribute to be stored in DB
[typo] fix `EXternal` typo in etc/config.json