Merge branch 'develop' into wk_bugs
Merge branch 'develop' into wk_bugs
添加了改变数据库文件功能

添加了改变数据库文件功能，并且在程序重新进入前台的时候不能不可修改账号。
Merge remote-tracking branch 'origin/wk_bugs' into develop
Merge branch 'develop' into suzhi
Provisioning Profile update