消息处理器
Merge branch 'benz' of https://github.com/ZJU-ISST/ISST-Android into benz
添加基类BaseActivity用于模拟登录和消息处理
Merge branch 'master' of https://github.com/ZJU-ISST/ISST-Android

Conflicts:
	src/cn/edu/zju/isst/ui/life/NewsListFragment.java
修复LoginActivity没有缓存用户信息的bug
NewsListFragment重构，完善功能
归档页面基类，重构部分页面代码，添加个人中心相关
更改API level为14，部分代码重构
Merge remote-tracking branch 'origin/phoenix' into benz

Conflicts:
	res/values/strings.xml
	src/cn/edu/zju/isst/FixedOnActivityResultBugFragment.java
	src/cn/edu/zju/isst/api/ArchiveApi.java
	src/cn/edu/zju/isst/api/LoginSimulation.java
	src/cn/edu/zju/isst/constant/NavGroup.java
	src/cn/edu/zju/isst/ui/life/ArchiveDetailActivity.java
	src/cn/edu/zju/isst/ui/life/NewsListFragment.java
	src/cn/edu/zju/isst/ui/login/LoginActivity.java
	src/cn/edu/zju/isst/ui/main/MainActivity.java
	src/cn/edu/zju/isst/ui/main/SlidingMenuExpListAdapter.java
	src/cn/edu/zju/isst/ui/main/SlidingMenuFragment.java