Blender Git Loki

Somehow, most files are missing from this commit, and I have no idea why,
so there will be more files following.

Anyway: NEW BOOLEANS from Google Summer of Code (Courtesy of Marc Freixas)

Known problems:

- Random freezes while using them as a modifier. This may not be directly
related to modifiers though - it's maybe just the huge number of
operations that leads to a higher probability of triggering a bug

- Static booleans (the first 3 entries in the WKEY menu) are borked
anyway, this is not due to this commit.

- Errors when exiting Blender (dupli_alloc stuff), is not related to this
commit, either.

Please test if everything works, and check the other build systems, I only
know that make works.

Also, compare the results of, say, cube-cylinder, in old and new booleans
:)