Refs #1696 : patching trunk.

git-svn-id: http://chianti.ucsd.edu/svn@31070 0ecc0d97-ab19-0410-9704-bfe1a75892f5
Fixes #1643 (GML arrow visual properties not imported when using importer)

git-svn-id: http://chianti.ucsd.edu/svn@31071 0ecc0d97-ab19-0410-9704-bfe1a75892f5