remove linux-only guard in drag-drop implementation
Fixes #3059
Merge pull request #3060 from admsyn/fix-drag-drop-nonlinux

Remove linux-only guard in drag-drop implementation
fixes for ofxKinect on win32 CodeBlocks Closes #3062
0.8.3 changelog
change minor version to 3 in ofConstants.h
Merge branch 'master' of github.com:openframeworks/openFrameworks into feature-64bit
Re-enabled drag and drop callback on non-64bit builds.