use usage in a more sensible way (it has no explicit return value)
Add a few more items from the CVS logs.
Added 4.8.2 release notes.
* Merge changes from devel.
This commit was manufactured by cvs2svn to create tag 'REL_4_8_1'.
debug.log and makecat.log may be not available
* Make UI_HELP_URL global by default, can still be overridden if user
can nuke it out.
This commit was manufactured by cvs2svn to create tag 'SAFE_PLACE_2'.
* Read shipmode from either CGI or Values, which allows us
to bounce to the ship_data page and retain the mode.