task #CER-393 포토 뷰 수정
task #CER-291 그룹 게시판 생성 (미완성)
Merge branch 'master' into gwan
Merge branch 'gwan'
Merge branch 'master' of https://github.com/letsget23/certis

Conflicts:
	app/views/users/registrations/show.html.erb