res added a 0 check to csMeshFactoryList::FindByName() to avoid a crash   when a 0 mesh name is passed.
res added a 0 check to csMeshFactoryList::FindByName() to avoid a crash
  when a 0 mesh name is passed.


git-svn-id: 28d9401aa571d5108e51b194aae6f24ca5964c06@21838 8cc4aa7f-3514-0410-904f-f2cc9021211c

crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS