Better way to get the active object while merging.
To use the Alpha technique only check the material Transparency checkbox,
in this manner we can also use this technique with aplha = 1.0 (opaque).
Changed obsolete LightMap technique to Emissive.
Contributed by Mike3D.
Fix UV2 export (UV1 was exported twice instead)
Merge pull request #21 from Mike3D/master

Fix UV2 export (UV1 was exported twice instead)
Revert back to LightMap (which adds a modulated diffuse color, emissive
adds a modulated emissive color).
Merge pull request #1 from reattiva/master

Update from original