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
Merge pull request #523 from despo/rake-task-for-labels

Rake task for labels
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
Merge pull request #531 from dwradcliffe/patch-1

pluralize "pull request" properly in tooltip
added tamil translation
improved visibility of pagination links in projects listing page
replaced rgba color with hex to avoid extra fallbacks for unsupported browswers - projects pagination links
Merge pull request #532 from steverob/master

improved visibility of pagination links in projects listing page
Ignore vendor dir.
Merge pull request #533 from stevelacey/ignore-vendor

Ignore vendor dir.
Better errors.
Bundler assets group.
Merge pull request #534 from stevelacey/better-errors

Better errors
Rebuilt Gemfile.lock file