Disabled the use of DrawElementsUInt by default for every mesh - allows export for OpenGL ES too
Add meta for materials
Merge pull request #22 from janoc/master

DrawElementsUInt fix
Merge branch 'master' of github.com:cedricpinson/osgexport into develop
Add log obj exported with name
Fix #24
Detect using alpha like this http://www.blender.org/documentation/blender_python_api_2_69_8/bpy.types.Image.html?highlight=image#bpy.types.Image