Add plugin library containing OSG examples
Support viewport capability in OsgPainter
Merge branch 'master' into osg_examples
Merge branch 'master' into osg_examples
Separate implementation of OsgPainter into two parts to avoid clash between glbinding and gl.h. Support framebuffer capability, so screenshot functionality now also works on OsgPainter.
Fix possible memory leaks in OsgPainter
Merge pull request #18 from hpicgs/osg_examples

Osg implementation and examples