Enhancements:
- Point Texture qL SOP
- Xform-to-BBox qL SOP
- Camera Plane and Frustrum SOPs
- Attrib Range Query qL SOP
- Trail Scatter qL SOP
- Scatter qL SOP
- gallery update
NEW: Camera Project qL SOP
Merge pull request #76 from johnnyquest/dev

lots-of-work