Minor linux issues

[stuffmatic]

From blndrusr on blenderartists.org

I noticed a couple of minor issues which I wanted to share - maybe you’d like to have a look on them: The title of the app window remains ‘Untitled’ after saving a file, Hitting ctrl+S (or ctrl+shift+S) brings the path to fSpy location - I think I would be handy to land on the image location instead.