Apply g_UserModeFix to command bar resize code

Interestingly, compiling the project on a different DPI throws a "client
site not available" error.  Intriguing!
Switch "save" icons to use a floppy disk <sigh>

I've gone back and forth on this for ages, but repeat comments from
users on "why does your save icon look like download?" finally motivated
me to change it.

I probably should have done it sooner (interesting discussion here:
http://stackoverflow.com/questions/1019573/save-icon-still-a-floppy-disk)
but as I had to manually create disk icons at 32x32 size, I put it off
for a long time...