Initial implementation for comment adding feature
Submit the ajax form through ajax and display a message to the user
Added view comments link
Add recaptcha support for comment submission
Added recaptcha_ajax.js, properly remove the dialog on close
Display success message differently for authenticated and anonnymous
Added basic validation for comment submissions
Added validate function to comment submission
Merge remote-tracking branch 'origin/devel-discussion' into devel

Conflicts:
	scoreboard/visualization/browser/views.py