Add tags for projects
Improve tag form
Fix N+1 queries
Improve rendering
Some improvements
Fix some troubles
Improve rendering
Add tests for checking preview image building
Fixed method name
Fix some troubles
Improve tests using helper
Improve rendering using partial
Improve helper method
Improve tag collection rendering
Improve interpolation
Merge pull request #21 from MaximAbramchuck/add_tags

Add tags for projects