updated popover
Merge http://github.com/gautamrege/chwink
removed spec from comment model
Merge https://github.com/shifakhan/chwink

Conflicts:
	app/models/comment.rb
Merge https://github.com/gautamrege/chwink
removing validation from comment
Merge pull request #14 from pkrawat1/master

popover overlapping problem resolved