v1.0  5/11/95 first public release

v1.1    Added an Imakefile
	pressing button no longer restarts game while entering a high
      	score.
	Added info to title screen.
	#ifdef'd out the cheat keys.  #define IM_A_BIG_FAT_CHEATER
	to get them back :)
	added patches for AIX, HPUX, SUNOS, ULTRIX, thanks to
	Johnathan Hardwick for all of them!
	Added keyboard controls

v1.2	Shrunk window to 400x500 (Was 400x600)
	Started adding Galaga style entrance paths
	Changed name to XGalaga
	Bonus pods, weapon upgrades
	SOUND!  For Linux and FreeBSD anyway.  Bug Sujal for others.
	added some command line switches 
	changed default controls to keyboard.

v1.2a   FreeBSD works for real
	Imakefile had CDEBUGFLAGS set for my machine. oops.
	forgot to #ifdef a coupld of play_sound()'s.  oops.

v1.3    added personal high scores, expanded global to 20 places
	reloads high scores before checking/adding a score (in case
	  someone else made the list)
	compiles clean with -Wall
	title page cycles through info
	sped up aliens during entry phase.  Bit of a kludge to keep
	  the paths I have defined already working about the same, but
	  no one but me is likely to care ;-)

v1.3a   Took out the $@#!%^ usleep entirely.  select should be fine on
	everyone's system.

v1.4	changed x11window.c into libXsprite.  Very few code changes, just
	  took a chainsaw to it and spilt it into manageable chunks.
	new alien types, new levels, new prizes (HINT: not every effect
	  of a prize need be immediately apparent.  Looking at the source
	  is cheating ;-)
	grabs the pointer intelligently - only when using the mouse to play,
	  and only when actually playing.  Ungrabs at the title screen
	  and when paused.
	tiny (3x3) mouse pointer
	Compile option to automatically insert the user's real name
	  into the high score list.  (Also fills it in as the default
	  if prompting for a name) look in the Imakefile to turn this on
	Help info on title screen, scoring info gone(because the ships
 	  change from level to level now)
	Other minor bugs fixed.
	Lots of tweaks for difficulty

v1.4a   bug that caused segfaults on hpux(and likely others, I don't
	know why I didn't run into it actually) fixed.

v1.5	15 levels
	Aliens will not attack until all waves have entered. (You're 
	  welcome, Rick.)
	Fixed for TrueColor and Mono displays. (XStoreColor causes them
	  to crash - just removed the color cycling on the high
	  scores for those displays).  Also, no more strange colored
          squares around objects on TrueColor displays.  There may
	  still be invisible ships on mono displays - this is a
	  problem with libXpm translating sprites with all dark
          colors into all black sprites.  Solution: draw brighter
	  sprites.

v1.5a	Added Sun and NAS sound support, thanks to Paul Kendall.
	  NAS should work on ANY system with NAS installed.

v1.6	Added high score hacks from Bill Clarke <bill@discworld.anu.edu.au>
	  compile time option NOSCOREHOGS changes the high scores to allow
          only one high score per uid.  Note that you will have to
          erase any existing *global* score file to use this mod.  The
          personal score files are still ok.
          Also, -scores option on the command line prints out the
          score table and exits.
        Ship display shows the number left when > 6 ships
          remain. (also from Bill, them aussies is GOOD!)
	Gets harder every 15 levels.  people getting near (past?)
          level 200 is really disgusting, stop it!  (The guy that
          wanted a save game option was the last straw ;)  May need to
          be harder still, I'll think up something more fiendish for 1.7
	Added Imakefile defs for Solaris (-DUSE_LRAND48 was apparently needed.


 