Style names are now stored internal as lower case.

This makes it a lot easier to figure out which name to use when using
a mimsy color that maps to a style name.
When saving old files name them .ext.old instead of .old.ext.

That way the old files aren't loaded when Mimsy starts up again.
Mimsy colors now support 'selection back color'
Don't style the selection
Finished first cut at underline selection words script.

As part of this text attributes not include the element name.