Add fading animation for OverlayView
Fix fading OverlayView on dismiss
quiet compiler warnings about block implicitly retaining self
suppress compiler warning. A better fix would be to remove this function (since it’s not used), but I don’t know what the orignal author intends so... that’s his call.
Adding a workaround in -rootView for DCIntrospect.

I see on github there have been issues with this -rootView method, similiar to what I encountered. There’s an open issue on this, and I added my voice to it, regarding my particular case:

https://github.com/nicolaschengdev/WYPopoverController/issues/57
Expanding the DCIntrospect workaround, because it uses DCTextView under iOS7 (and above) but UITextView under pre-iOS7.
And even more DCIntrospect workaround.
Adding an option ‘completion’ block parameter to popover presentation.
adding explicit __autorelease to delegate method to keep the compiler happy.
convert ‘popoverVisible’ to more closely mirror the UIPopoverController API
Merge pull request #61 from bill350/master

Add fading animation for OverlayView by bill350
fix issue #59
Merge branch 'master' of https://github.com/nicolaschengdev/WYPopoverController
fix issue #57
fix issue #55
update readme
cheap suppression of compiler warnings about 'block implicitly retains 'self''. This may not actually fix any possible retain cycles... it's just keeping the compiler quiet.
change 'popoverVisible' to more closely match UIPopoverController API
have to adjust the @synthesize too
adding popover completion block