Fixing #328
Replacement for gluUnproject, which seems to be causing problems with some intel based drivers. #321
Slight change to the object info corners so there are always 2 corners visible.
Add visual nodes for the scale tool.
Add working scale tool.
Fix typos in README.
Fix to add initial model file(s) to MRU list
Don't save window size/pos on exit if minimized
Merge pull request #333 from smorloc/master

2 fixes for bugs I introduced in recent new features
Merge remote-tracking branch 'upstream/master' into new-layout

Conflicts:
	.gitignore