Update "Matte for all secondary rays" option in Maya VRay Standard template.
Fix shadow catcher issue in Maya Vray Standard and Maya Vray Domelight templates.
Merge pull request #2 from ManuelFlemming/hotfix/MayaVrayStandard

Ensure ground plane shader "matteForSecondaryRays" attribute in "Maya_VRay_Standard" and "Maya_VRay_Dome_Light" templates is set.