DruidItemSwap

- A few minor changes and fixes; most notably for flight form when going through portals to swap back to your original trinket (finally got swift flight form so I can test these things :D) - The primary reason for this update is to inform users of a change in the upcoming patch 2.4.3. From the patch notes: "Equipping an item will now cancel any spell cast currently in progress." I have tested this and can confirm that the two primary features of DruidItemSwap -- healing swapping and idol swapping -- are indeed broken by the change. As such, I will be releasing a feature-stripped version for those who would like a more efficient and less buggy alternative to larger "closet" mods such as ItemRack and ClosetGnome for innervate and swift flight form swapping. That being said, I will not be spending nearly as much time on the mod because this change pretty much destroys DruidItemSwap's primary purpose. So much for that little bit of help for feral/balance druids =/