Factor commit message textareas.
Merge branch 'factor-commit-msg-textarea' of https://github.com/cirosantilli/gitlabhq into cirosantilli-factor-commit-msg-textarea

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Conflicts:
	app/views/projects/blob/_remove.html.haml
Merge branch 'cirosantilli-factor-commit-msg-textarea'

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Conflicts:
	app/views/projects/edit_tree/show.html.haml