[crossfire] building very old versions

[Mark Wedel]

  Finally back from vacation, so can look at what I have stored away.

  It isn't clear what version you ended up compiling.  Looks like I have 
everything back to 0.91.7 (1995)

  It looks like the bigworld maps were first added in 1.5.0 as an option, with 
them becoming the default version in 1.8.0 (though I'm not sure at which point 
they would stop working with later versions, if ever)

  It also looks (via a quick grep of 'skill *.README') that the skill code first 
appeared in 0.92.1.  Before that time, each character just had a single 
experience total and level, and that overall level determined things like 
ability to cast spells, ability to hit things, hp, sp, etc.

  So depending on exactly what you are looking for, that might help determine 
ideal version to use.  The old style X11 client (pulled into the client area, 
but looking the same) existed in the client code until 2010.

  I can certainly make any of the versions available if desired.