mutualmobile/MMDrawerController — pull request #71 by kcharwood (2013-08-12 14:49:41+00:00)
Title: a bug when using  closeDrawerAnimated:velocity:animationOptions:completion:

if closeAnimation is running,then I call this method again, the sider viewcontroller will become black
in my case, this method will call sencond time through tap gesture
I will send a pullrequest to fix this case, hope it can help~thanks