Blender Git Loki

Bugfixes: now GridMesh can *actually* be ANDed with multiple successive polygons.

GridMesh can now handle being ANDed with multiple *successive* polygons rather than all-at-once-so-long-as-they-dont-intersect. Also, slow PIP test is avoided when possible by a more general mechanism that can propagate interior/exterior info via any grid vertex.

Another order bug squashed! Can't order everything before cutting. Now cuts happen after every edge.

Buggy code pre-reorganization.

Added infrastructure to visualize inclusion-exclusion, moved trim code into GLUT demo.

Merge branch 'soc-2014-nurbs' of git.blender.org:blender into soc-2014-nurbs

Conflicts:
source/blender/editors/io/io_rhino_import.cpp

blender build fix

Merge remote-tracking branch 'polytest/master' into soc-2014-nurbs

Moved files into position for merge with soc-2014-nurbs branch.

Fixed dropped vertex in poly creation, finished multi-poly support, better default scene.

Began to add back in multi-poly code, squashed left-horizontal bug.

Dammit, one more order bug and one raster bug. All 8+8 cases pass now.

3rd overlapping edge order bug fixed. Pretty sure this is the last one.

Overlapping edge order fixed (exits old polygon before enters new polygon)

Interior label propagation

Order bug fixed.

Finally nailed the edge-skipping bug (required minor architectural change). The out-of-order bug still lurks, but it should be relatively trivial.

Refactored code to fix bug on reallocation of large vertex table.

Whoops, I forgot to make git track the GridMesh GLUT code. Here it is.

Updates to GridMesh (int indexes, now verts keep backpointers to first vert