describe and add Comment model
describe and add Comment.new_with_user
describe and add Comment#user
delete Comment.new_with_user
describe and add Comment#user=
Revert "describe and add Comment#user"

This reverts commit 7859c8d0d62a2f43e00f29fe319c89aba1db046b.

Conflicts:
	app/models/comment.rb
	spec/models/comment_spec.rb
Revert "delete Comment.new_with_user"

This reverts commit 7cf62490f1ab68385286fda70f446a80ef55fa3c.
add commenting
add hr to item partial
add item_header partial for showing part of item
Merge branch 'add-comments'