Merge tag '0.1.0' into develop

Story nested comments
Merge tag 'review_fixes' into develop

review fixes
ajax commenting
Breadcrumbs
Test refactoring
Refactoring: controllers namespacing
Refactoring: nested comments
Comments json api extracted
Refactoring: comments controller hierachy
Review fixes
added wrong for tests
Merge pull request #2 from vemperor/feature/wrong

added wrong for tests
bullet added
User registration email notification (Mailer)
Merge branch 'release/0.2'