This is a small AddOn which automatically cancels shadow form when a Holy spell (or any other action that requires to be out of shadow form) is cast.
It uses the Ace2 libraries so it should be light weight. If found it integrates with SCT to display the message that it's canceling shadow form. The AddOn doesn't really have any user interface.
Updated the TOC to reflect the 2.0 patch. Everything else appeared to work please let me know if there are any issues.