CloseAction becomes invisible on Android 4.1.1

[Dan1ve]

Hi,

thanks for this really nice library!
There seems to be a bug concering the CloseAction on older Android Devices, though. On my Transformer Prime running Android 4.1.1 (maybe also on older devices?) , the close icon is only visible for less than a second, than it's just gone.
Note that everything works fine with the other actions and even with the close action on my Nexus 5 (API 21) and my Nexus 4 & Galaxy Note 10.1 (both running Android 4.4).
Any idea what we can do about this?

Cheers,
Daniel