updated mayaseed website link
excluded non light emitting light from export
moved node definitions into they own directory
updated about me graphic
renamed node files
Removed unused MGenericMaterial attribute, reflected colour, wasn't doing anything.
Merge pull request #1 from MaxIsJames/master

Removed unused MGenericMaterial attribute, reflected colour, wasn't doin...
removed unused imports
changed nodeTypeId's for consistency
nodes will now report their own failure to load
added ms_appleseed_scene node
added bounding box parameter to scene entity
removed todo
tweaked info string
initial implementation of imported appleseed scene
fixed bug in output of bounding bode param for scene with no meshes
moved scene params to top of xml output
fixed bounding box bug
code cleanups
extra commands needed for imported appleseed scenes