Blender Git Loki

RNA:

- Added an autogenerated C++ API, basically a simple layer over the C
API, but with the advantage that it fits the object oriented RNA
model better. Read-only still like the C API.
- Had to rename "protected" property in Action Group because it is
a C++ keyword, called it "locked" since that seems more consistent
anyway?
- It's not used anywhere, so here's some example code I used to test it,
to get an idea of how it would be used:

http://pasteall.org/4582/cpp

- Also, ID names are now editable.