Adding MSW notes doc
MSW docs cleanup
updating MSW qt sample image
Addressing minor issues caught by clang static analysis
Cleaning up Mac multitouch as opt-in
Moving multiTouch-enabled to an App::Setting rather than derived class' Settings
Enabling multiTouch on MSW based on app setting
sample scons added
scons 'compile as mm' option'
Merge remote-tracking branch 'upstream/dev' into dev-scons