Several things in one commit; could not split this up easily,
one job invoked another, and so on. :)
- Added pulldowns for save/load .blend file in top bar.
- To enable "Save" without further popups (save over)
I've added a signaling function in window header to
indicate a succesful save.
- On any undo push it now signals 'file changed'. This
goes by notifiers nicely, but now registers only the
undopushes, which is quite unreliable. "Changed" state
shows in header as "Blender*" and for OSX with the
standard close button black dot.
- Made screencast show a button in top bar indicating such,
and allowing quit. No hotkey for quit yet... but ESC will
keep casting now.
- Fixed new BLF_init(), which should be in WM_init() and not
on any .B.blend read.
- Fixed CTRL+F3 "Save Screenshot", which was still using old
fileselect code.
1090b0c598