[Bug-gnubg] Default directory for SGG and TMG games

[Albert Silver]

Hi, 

        I wanted to suggest that the installation program automatically
set the directory for importing SGG games to be that of \Gamesgrid\Saved
games where they are stored by by default by the GG client. Contrary to
the .mat format, used by numerous programs, the Gamesgrid client is the
only program to generate these files and it makes sense to have it set
it and not force the user to locate it and then learn how to set it as
the default.
        A similar suggestion would apply to TMG games created by the
Truemoneygames client.

                                                Albert