Add a field to track a cookbook's replacement
Track deprecated cookbook replacements
Merge pull request #334 from opscode/track-replacements

Track deprecated cookbook replacements
owners shouldn't be able to add themselves as collaborators
style the button consistently
add name to collaborator
find users by username
Formats the add collaborator input field
Override some default select2 styles and convert to rem-calc for RWD.
find users by username, for reals this time