IMVU example room and tutorial for Blender updated

[kat]

The example files and tutorial for making IMVU furniture rooms using Blender 3D have been updated. The tutorial - "How to make IMVU rooms using Blender 3D" - was re-written and now includes a good number of supporting images which explain the different aspects of the process. The accompanying example file now only includes the *.blend files for furniture rooms as the old 'locked' rooms are no longer actively supported by IMVU. Also upload to IMVU is the example room itself.