Basic comments

+ Comment model controller views (except edit)
+ Comment partial
+ Comment displayed and available for ideas
+ Comments can be replied to
Basic comments

+ Added comments for boxes
* modified comments display
Added comment edit

+ Comment edit
* Comment display handles deleted members
Added comments moderation

Merge github.com:adaedra/pfa-idea3

Conflicts:
	config/routes.rb
Fixes after merge

* use of get_user

Merge github.com:adaedra/pfa-idea3

Conflicts:
	db/schema.rb
Improved coding style

* comment_controller
Merge branch 'master' of https://github.com/brenauj/pfa-idea3 into brenauj-master

Conflicts:
	app/views/boxes/view.html.haml