Fix for OSX Yosemite
Remove pre-packaged 3rd-party modules from source tree and on OSX bundle them at build time.
Upgrade PyOpenGL to 3.1.0 (except under Python 2.5 on OSX 10.5/6).
Add support for PyOpenGL-accelerate (except under Python 2.5on OSX 10.5/6).
Upgrade PIL to Pillow 2.5.1 (except under Python 2.5 on OSX 10.5/6) and use it instead of glymur for JPEG2000 support.
Upgrade GDAL to 1.11.
Don't use large font in palette on Windows (looks crap if user has already chosen larger fonts).
Centre icon vertically in palette lists.
Use VBO for vector indices.
Fix for imagery cache location on Windows.
Fix for maximize on OSX.
Fixes for OSX 10.9 codesign.
Release 2.49.