Refactored like model integration.

Moved a few methods specific to like from Actor to SocialStream::Models::Object and added some tests.
Merge pull request #340 from KrzysiekJ/like_model_integration

Refactored like model integration.
Add CONTRIBUTING from Devise's
Remove obsolete reference
Remove obsolete javascript
Fist version of repository
Link header to repository path
Fix documents#new
Fix document views
Fix repository links
Add repository links
more responvive css
Merge branch 'master' of github.com:ging/social_stream
First step in header search refactoring
profile responsive
profile default css and responsive corrections
conversation default and responsive css
new_message id  default and responsive css
Fixed SASS typo.
explore  default and responsive css