From Jeremy Moles, Added check for image transluceny to image loaded code, placing the image quad into the transparent bin for images with alpha values. 
From Jeremy Moles, Added check for image transluceny to image loaded code, placing
the image quad into the transparent bin for images with alpha values. 


jtorresfabra/osg,marchelbling/osg,tomasthoresen/osg,scrawl/osg,jtorresfabra/osg,scrawl/osg,artoolkit/osg,openscenegraph/osg,artoolkit/osg,jtorresfabra/osg,tomasthoresen/osg,scrawl/osg,marchelbling/osg,tomasthoresen/osg,scrawl/osg,openscenegraph/osg,artoolkit/osg,marchelbling/osg,tomasthoresen/osg,openscenegraph/osg,marchelbling/osg,jtorresfabra/osg,artoolkit/osg,openscenegraph/osg