设置所有的Activity只支持竖屏模式;修改listitem背景
Merge branch 'master' of https://github.com/SYSUsmartlife/smartlife.git

Conflicts:
	SmartLife/.gitignore
	SmartLife/gen/com/smartlife/activity/R.java
增加回退事件监听；增加任务详情界面；使用注入工具buttknife构建项目
添加gen文件
Merge branch 'master' of https://github.com/SYSUsmartlife/smartlife

Conflicts:
	SmartLife/.gitignore
	SmartLife/AndroidManifest.xml
	SmartLife/gen/com/smartlife/activity/R.java
	SmartLife/res/layout/activity_group_detail.xml
	SmartLife/src/com/smartlife/adapter/HomeViewPagerAdapter.java
	SmartLife/src/com/smartlife/adapter/SearchGroupListAdapter.java
	SmartLife/src/com/smartlife/fragment/TaskCreateFragment.java