Reapplied cleanup and bugfixes to zz85's latest Text version, made crashes on...

Reapplied cleanup and bugfixes to zz85's latest Text version, made crashes on bad geometry less fatal.

Still doesn't work properly for Gentilis glyps with holes, but at least now you can see something.

Also some glyphs from Optimer are still problematic depending on tessellation ("B" and "f").