==== two different formats ====

    There are TWO different formats for 'guifont'.

    On GTK+ 2, it is:

        <font name> <font size>

    On everything else, it is:
        <font name>:h<font size>:<bunch of junk>

    The plugin needs to be able to be able handle BOTH formats.



==== blank &guifont by default ====

    By default, &guifont is blank, even though SOME font is actually being used.

    It there a way to find out what the default guifont is?