less restrictive material ID parsing (issue #416)
less restrictive material ID parsing (issue #416)

zacoxicompton/ExocortexCrate,Exocortex/ExocortexCrate,Exocortex/ExocortexCrate,SqueezeStudioAnimation/ExocortexCrate,ma55acre/ExocortexCrate,ma55acre/ExocortexCrate,SqueezeStudioAnimation/ExocortexCrate,ma55acre/ExocortexCrate,zacoxicompton/ExocortexCrate,Exocortex/ExocortexCrate,SqueezeStudioAnimation/ExocortexCrate,Exocortex/ExocortexCrate,zacoxicompton/ExocortexCrate,SqueezeStudioAnimation/ExocortexCrate,ma55acre/ExocortexCrate,zacoxicompton/ExocortexCrate,SqueezeStudioAnimation/ExocortexCrate,ma55acre/ExocortexCrate,Exocortex/ExocortexCrate,zacoxicompton/ExocortexCrate,ma55acre/ExocortexCrate,SqueezeStudioAnimation/ExocortexCrate,Exocortex/ExocortexCrate,zacoxicompton/ExocortexCrate,ma55acre/ExocortexCrate,Exocortex/ExocortexCrate,zacoxicompton/ExocortexCrate,SqueezeStudioAnimation/ExocortexCrate