Add unit tests for ApplicationHelper
Remove empty helpers
Stop testing Rails validations, remove Shoulda
Convert user views to ERB
Extract validation error messages to partial
Convert article views to ERB
Convert message views to ERB
Convert upload views to ERB
Convert main layout to ERB
Extract user info and navigation into partials
Convert reply views to ERB
Convert signin page to ERB
Convert section views to ERB
Remove HAML
Merge branch 'haml-to-erb'