Support for iPad and UIPopoverController

[tanwwg]

Hey Wayne,

I've a small patch to support WHMessageActivity on the iPad where the UI is show in a popover. It adds support to properly dismiss the popover.

Would you be interested?

[waynehartman]

A patch for this issue was recently added by another user. Do you have the latest version? If the issue stills persists, please fork and send a pull request and I'll gladly merge it in.