Allow linking against OpenSceneGraph 3.2 and PCL 1.7. Renames some PCL Classes. Use BIND_PER_VERTEX instead of depricated BIND_PER_PRIMITIVE for OSG vertex arrays.
Merge pull request #2 from urp/osg3_2_pcl_1_7

Allow linking against OpenSceneGraph 3.2 and PCL 1.7.