Blender Git Loki

Fix #27635: GLSL filter uniform variable not set for group instance.

The problem was that SCA_2DFilterActuator was defining and using a
variable called "m_gameObj", when it should be using "m_gameobj" as
defined by SCA_ILogicBrick. The way it was, reparenting did only half
the work required to duplicate the actuator.

Patch by Alex Fraser, thanks!