Crash on iOS8

Hi,
OHActionSheet crashes on iOS8 beta 1 when trying to present an action sheet with the showInView method on an iPad. Here's the crash log:

**\* Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Application tried to present modally an active controller <_UIAlertShimPresentingViewController: 0x189675d0>.'

Last Exception Backtrace:
0 CoreFoundation 0x2a7562bf CFDateGetTimeIntervalSinceDate + 16011
1 libobjc.A.dylib 0x37672d2f _objc_exception_throw + 39
2 UIKit 0x2e01c89d _UINavigationButtonUpdateAccessibilityBackgroundsForBlendMode + 158342
3 UIKit 0x2de178b1 UIRectIntegralWithScale + 1298
4 UIKit 0x2e3c09ad _UIKitSafeTextView + 49310
5 UIKit 0x2e3bffa5 _UIKitSafeTextView + 46742
6 XXXXX 0x0012765d -[OHActionSheet showInView:](OHActionSheet.m:85)
7 XXXXX 0x0012736f +[OHActionSheet showSheetInView:title:cancelButtonTitle:destructiveButtonTitle:otherButtonTitles:completion:](OHActionSheet.m:33)
8 XXXXX 0x000cbad9 -[MainViewController shareMusic:](MainViewController.m:5716)