Blender Git Loki

Added a hard coded check box to the vertex group list items in interface/interface_templates.c list_item_row()

Made my 3 new buttons only appear in weight paint mode when there are vertex groups present
in properties_data_mesh.py

I took the now redundant check box out of properties_data_mesh.py

I took out unnecessary code (resulting from copy/paste) from my lock all, unlock all, and invert all functions of object/object_vgroup.c

(and I got rid of a new line in paint_vertex.c :) )