Update for Spaceward Ho!

        - reads now PC-Game-Files
        - writes now PC-Game-Files
BUT     - DON'T create PC-Game-Files!

and some other minor fixes!

YOU need the original from Jun-94!

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 9285   14636  63.4% -lh5- e89d Apr 14  1994 spatch
[generic]                  768    2090  36.7% -lh5- 5a77 Feb  6  1995 HO!_Install
[generic]                12993   17719  73.3% -lh5- 2e16 Jun  8  1995 texte.pff
[generic]                12191   16587  73.5% -lh5- 9d55 Jun  8  1995 texteE.pff
[generic]               110316  110316 100.0% -lh0- ceb0 Jun 10  1995 HO!.pch
[generic]                 1021    1860  54.9% -lh5- 5c82 Jun 10  1995 changes.dok
[generic]                  213     330  64.5% -lh5- 578a Jun 11  1995 update_ho!
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         7 files  146787  163538  89.8%            Jun 22  1995