* Moved public declarations in camera and lamp to a new file: bpy_types.h.
* Fixed minor bugs in material, rgbTuple and Lamp + other minor changes.
* Made part of the changes to conform to decided naming conventions.
Found that syntax errors in scripts were giving SIGSEGV, my mistake.
* Added new helper type: rgbTuple.
This is used to represent and deal with rgb color triplets in modules
like Material and Lamp. Updated Lamp module to use it.
