validate uniqueness of label on project
ensure a label can only be assigned to a project once
get labels from github!

fixes #396
for => from
remove twitter glyphicon references,
they don't exist anymore
remove caching from projects (labels can change)

only make filter checkboxes inline
fix claim project field for bs3
display labels on editable project view
fixes #420
fix project pagination
Merge pull request #526 from despo/fix-420

Fix 420
Merge pull request #525 from despo/styling-updates-for-bs3

Styling updates for bs3 and display labels on editable projects
Merge pull request #527 from steverob/master

Proper pluralization of member count for orgs.
adding missing italian translations
Merge pull request #523 from despo/rake-task-for-labels

Rake task for labels
Adding new organization member count
Merge pull request #528 from endelwar/master

adding missing italian translations
fix issue with filtering by labels and postgres random()
Gem updates
pluralize "pull request" properly in tooltip