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.
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
Merge pull request #103 from askaway/bugfix-inline-answering-for-401-and-422

Bugfix inline answering for 401 and 422