Edit V0.8(6): Handle errors during save and decompile.

Edit V0.8(5): Disable COMMAND-SHIFT-1...COMMAND-SHIFT-9 during the SET
KEYS dialog.  You won't be able to get a snapshot of this dialog!

Edit V0.8(4): Flush volume after saving (hey, I didn't even have to be
told about this one again).

Edit V0.8(3): Call loadkset() after saving otherwise we loose our
handles when they are moved into the resource files and subsequent
action (like a decompile or set keys) causes us to bomb.

Edit V0.8(2): Call DrawMenuBar() after enabling or disabling items so
that the menu bar item gets enabled or disabled as well.

Edit V0.8(1): Don't need to have keymap resource defs in this file now
that bootstrap period is over.  This means that the settings file must
be from a V0.8 series kermit or else the defs won't be found -- but
that's ok -- it will ensure some compatability -- and we tell people
about the missing resources.