Merge pull request #271 from num3ric/appRewrite

Moved glLineWidth before glBegin otherwise it is invalid
Removing glViewport call in setMatricesWindowPersp() since Viewport is no longer 1:1
Fixing Retina glViewPort setup on Mac to be based on backing store size
samples/RetinaSample to reflect more common use case
Merge branch 'appRewrite' of github.com:cinder/Cinder into appRewrite
Removing old Retina_iOS sample
samples/RetinaSample improvements
More improvements to Retina sample - cleanup and text rendering
Removed antialiasing on RetinaSample
Fixing uninitialized mEnableHighDensityDisplay variable on non-iOS
Zeroing out bytes in MSW mapVirtualKey()
Added gl::lineWidth()
Merge branch 'appRewrite' of github.com:cinder/Cinder into appRewrite
iOS support for RetinaSample
use view.bounds when updating matrices on resize - it adheres to the device orientation
Merge pull request #272 from reakinator/resize_rotation_fix

use view.bounds when updating matrices on resize - it adheres to the dev...
Removing stray debug cout's
Merge branch 'appRewrite' of github.com:cinder/Cinder into appRewrite