0.35 Added `eject'
0.40 Added `stop CD player on SIGTERM'. Some internal cleanups. `dcd loop'
     without a tracklist now plays the whole disc.
0.50 Removed `next' and `previous' command switches. dcd.c was almost
     completely rewritten.
0.51 "Syndrome"
     Added `quit' to avoid exiting immediately, works great for playlists.
     screenop.c: various cleanups, thanks to Alvaro Herrera
     Started giving versions clever names like tin prereleases.
0.60 "Feature Creep"
     Added `dcd x' to generate CD Index discids. Added base64.c and sha.c
       in support of that. (See those files for (C) info.)
     Added all PID maintenance code, thanks to Lalo Martins' nagging :)
     Re-added `dcd n' to go with PID management; it now bumps an existing
       dcd process to its next track (or next random track, or whatever)
       Added process.c which has all that stuff, including ugly filestuff.
     screenop.c: Fixed the helpscreen.
     random now can take a tracklist too.
     Rewrote changelog so it looks all professional.
     Added check for data track to libcdplay.c and screenop.c
0.70 "Roswell Grey"
     Added u and b options for CD Index URLs. 'x' now merely chucks out
       the disc id, which frankly isn't too useful.
     Added `dcd p' to pause/resume the disc. And it works this time too.
     libcdplay.c: do smart things when disc isn't playing (cd_current_track)
     libcdplay.c: rearranged a few boring internals
     Fixed all freeamp.org URL references to point to cdindex.org
0.80 "Felicity"
     Took out the old 'b' option which was really goofy, and added the
       new (b)ack and (f)orward options to skip about the disc. Hacks
       on dcd.c, cd-misc.c, cd-misc.h, screenop.c as appropriate.
     Finally put useful CD Index code in. cdindex.c hacked all to hell.
     Rewrote process handler code to be far more sane internally (using
       FILE instead of icky read/write). process.c beaten heavily.
     Added networking code, courtesy of LordVader @Dalnet. Still more
       rewrites on cdindex.c, screenop.c. 'connect' command option added.
