Merge pull request #98 from askaway/feature/pretty-pictures

Feature/pretty pictures
Revert "Feature/pretty pictures"
Merge pull request #101 from askaway/revert-98-feature/pretty-pictures

Revert "Feature/pretty pictures"
style improvements
Add "best questions"
Move vote count maths to before XHR. Implement reversing on error.
Add an auth interceptor.
Add the auth interceptor to the app.
Add the requires_login: true property to force login if trying to double-vote.
Remove unused variable.
Remove redundant error pathway, now caught by interceptor.
Only catch 422s for answers.
Reload an individual question; only grab *some* details.
Implement error/reload functionality.
422 with json in the XHR case.
Can only comment on a question you can't answer.
Merge pull request #102 from askaway/responsivate-vote-count-on-click

Move vote count maths to before XHR. Implement reversing on error.
IE8 doesn't like the delete keyword.
Merge branch 'master' of github.com:askaway/askaway into bugfix-inline-answering-for-401-and-422

Conflicts:
	app/assets/javascripts/controllers/questions.js
Fix invalid answer redirect