New package kdevelop-clang-git.
Adopted blender-git package.
kdevelop-clang-git: fix installation issue.
bluedevil-git: removed obsolete dependency.
blender-git: make incremental builds possible.

Crazily enough this approach is much more simple and straightforward
than the newfangled way.
blender-git: enable also Collada.
blender-git: build only the one relevant CUDA binary.

Also build it in a way that doesn't eat up all RAM.
Removed obsolete blender-svn package.

Replaced with blender-git.