pruning prefixes already indicated by membership of submenu.
pruning prefixes already indicated by membership of submenu.

also:
 - fix for missing AlembicSource search string
 - recontracted OpenColorIO to treat it as single word

paulondc/gaffer,davidsminor/gaffer,cedriclaunay/gaffer,johnhaddon/gaffer,goddardl/gaffer,chippey/gaffer,paulondc/gaffer,goddardl/gaffer,davidsminor/gaffer,hradec/gaffer,paulondc/gaffer,lucienfostier/gaffer,GafferHQ/gaffer,ImageEngine/gaffer,andrewkaufman/gaffer,johnhaddon/gaffer,boberfly/gaffer,ivanimanishi/gaffer,chippey/gaffer,andrewkaufman/gaffer,andrewkaufman/gaffer,appleseedhq/gaffer,chippey/gaffer,cedriclaunay/gaffer,lucienfostier/gaffer,johnhaddon/gaffer,andrewkaufman/gaffer,cedriclaunay/gaffer,boberfly/gaffer,paulondc/gaffer,GafferHQ/gaffer,ivanimanishi/gaffer,appleseedhq/gaffer,ivanimanishi/gaffer,GafferHQ/gaffer,hradec/gaffer,hradec/gaffer,lucienfostier/gaffer,boberfly/gaffer,appleseedhq/gaffer,lucienfostier/gaffer,davidsminor/gaffer,chippey/gaffer,boberfly/gaffer,hradec/gaffer,GafferHQ/gaffer,ivanimanishi/gaffer,goddardl/gaffer,johnhaddon/gaffer,goddardl/gaffer,andrewkaufman/gaffer,cedriclaunay/gaffer,davidsminor/gaffer,ImageEngine/gaffer,hradec/gaffer,johnhaddon/gaffer,appleseedhq/gaffer,ImageEngine/gaffer,ImageEngine/gaffer,GafferHQ/gaffer