adjust tables' relationship and added a feature of changing status of admin_comments
Merge pull request #20 from KimMinJeong/KMJ

adjust tables' relationship and added a feature of changing status of ad...
Merge branch 'master' of github.com:KimMinJeong/Collabo into board_main_contents

Conflicts:
	Board/Board_main.py
	Board/templates/board_top.html
	Board/templates/signup.html