Merge branch 'feature_post' into dev
attach poll in timeline (post only, get: json)
Remove jsonfield
Poll: json parse 완료
Merge remote-tracking branch 'origin/dev' into feature_post

Conflicts:
	Maple/api.py
	Maple/models.py
	static/js/timeline.js
	templates/timeline.html
Merge remote-tracking branch 'origin/dev' into feature_post

Conflicts:
	Maple/api.py
	Maple/models.py
	static/js/timeline.js
	templates/timeline.html
자신에게 target user 적용으로 open_scope가 혼동을 일으키는 문제 수정 및 group tag의 name이 적용되지 않은 문제(merge시 유실)