Updated build process

Signed-off-by: Lanny McNie <lanny@gskinner.com>
Updated documentation throughout, added MotionGuidePlugin, and EventDispatcher.

Signed-off-by: Lanny McNie <lanny@gskinner.com>
Updated demos and NEXT lib and docs.

Signed-off-by: Lanny McNie <lanny@gskinner.com>