rounded the four corners of the screen, like ios6.

屏幕四个角圆角化，像IOS6一样。

Configure options from Settings

version:1.1-1
fix some incompatible.
note: Only test on ip5, Not sure compatible with all other tweaks.
If you didn't know how go safe mode, Careful.
解决部分兼容
有限测试，小白就不要装了。

Updated	April 21, 2014
License	Free Package