navigator.msPointerEnabled got deprecated

the used flag got deprecated, the recommended way to detect MSPointerEvents are a test against window as described here:
http://msdn.microsoft.com/en-us/library/windows/apps/hh972607.aspx
Adding W3C pointer event support
small fix in the docs
Merge branch 'fix-msPointerEvent-detection' of https://github.com/visiongeist/iscroll into visiongeist-fix-msPointerEvent-detection
Merge branch 'visiongeist-fix-msPointerEvent-detection'
clean up
Merge branch 'visiongeist-fix-build'