clean up some modules
Update FindVRPN
Add FindDirectShow from VRPN
Update help
Add CMakePackageConfigHelpers as a backported module from 2.8.10
Improve finder for winhid
Update note about git-subtree
Update copyright date
Explicitly specify a binary dir for openhaptics nested targets.
Update WindowsSDK for VS2012
Try handling new versions of cppdom that have their own config file.