removed CINDER_WINRT_XAML
removed CINDER_WINRT_XAML
added isXaml to winrt app settings
added CINDER_APP_BASIC_XAML
use directx 11_2 if _MSC_VER >= 1800
replaced tracking functions with thread safe pointer functions:
set mIsXaml to false by default
check if isXaml before running
check if isXaml before initializing directx
check if isXaml app
replaced tracking functions with thread safe pointer functions
enabled pointer events
removed CINDER_WINRT_XAML
added xaml support methods
updating imageFileBasic