修改了动态模型的文件名，个人信息页可显示小组动态列表。
Merge commit 'd628e04b261c6895bceefcc2554f1fa64e0d210c' into dev

Conflicts:
	app/controllers/users.js
	app/models/group_message.js
	app/models/groupmessage.js
	app/models/message.js