code cleanup:

- move object_iterators.c --> view3d_iterators. (ED_object.h had to include ED_view3d.h which isn't so nice)
- move projection functions from view3d_view.c --> view3d_project.c (view3d_view was becoming a mishmash of utility functions and operators).
- some some cmake includes as system-includes.

intern/cycles/device/CMakeLists.txt

@@ -7,6 +7,7 @@ set(INC
 	../util
 	../render
 )
+
 set(INC_SYS
 	${OPENGL_INCLUDE_DIR}
 	${GLEW_INCLUDE_PATH}