updated all packages to last version. Meant a migration from express 3 to express 4
redirected /intro towards /static/intro.html
Merge pull request #29 from Ralt/master

Fixes the long URLs to go out of profile
Merge remote-tracking branch 'origin/master' into express4
less menu for flakes
Empty flakes are prevented. If possible, messages are sent grouped. Minor cleaning
List of rooms for mobile has been remade
better login page for mobiles
better user sorting in #users
admins can now delete messages