Log Message:
Update to 1.3.0:

2006 Apr 17: version 1.3.0
* Added mouse handling to the code. That includes modifying the SDL code to
  handle mouse activity, adding a large set of new commands, making it
  possible for Chip to move towards a goal over several ticks, and
  modifying the action struct (and the solution file) to permit storing the
  new moves in solutions.
* Added the database of unsolvable levels, which warns users before they
  play a level known to be unsolvable, and automatically gives them the
  password to the next level.
* Added the solution file display, allowing the user to manage multiple
  solution files for a single level set.
* Changed code to accept a solution file as the sole cmdline argument, if
  the solution file contains the set name. Hopefully this, and the previous
  addition, will make it easier for people to share solution files.
* Added the batch-mode verification feature, to check the existing
  solutions without initializing the GUI subsystem.
* Fixed the old emulation bug (MS logic) involving Chip turning a cloned
  block into a clone of himself while going through a teleport.
* Fixed the bug (MS logic) preventing Chip from pushing a slipping block
  parallel to its slipping direction when the push happens through a
  teleport.
* Improved the emulation of several creatures teleporting simultaneously
  (Lynx logic), with assistance from ccexplore.
* Minor improvements to the Lynx pedantic mode.
* Fixed the password input routine. (It was completely broken; not sure
  when that happened.)
* Rewrote the code so that level data and solutions are kept compressed in
  memory, and expanded only when needed, instead of decoding entire files
  when read. This change makes for a small reduction in memory usage, and
  reduces the overall level of useless work being done.
* Added code to shutter the map view when MS gameplay is paused.
* Numerous minor tweaks to the code, the display, and the documentation.

2006 Feb 24: version 1.2.2
* Finally got the handling of brown buttons (MS logic) working correctly.
  It's been a long time coming, and it's all so simple in hindsight.
* Added code to grok the new solution file format. This version of Tile
  World will continue to use the old solution file format, but if it
  encounters a file in the new format, it will handle it correctly.
* Added the ability to specify a solution file by name on the command-line.
* Added -P option for Lynx pedantic mode.
* Added the Shift-Ctrl-X feature to permanently delete solutions.
* Fixed bugs in Shift-Tab feature, and formally documented this feature.
* Fixed bug in the stepping UI.
* Fixed bug reported by Thomas Harte, where an international keyboard
  generating a non-Latin-1 character could cause TW to segfault.
* Fixed bug reported by Catatonic Porpoise, where SDL was being asked to
  blit to a locked surface.
* Fixed a segfault in MS logic reported by Evan Dummit (occurring when a
  cloner's creature in the northwest corner is replaced by Chip).
* Added casts to avoid new warnings in gcc 4.
* Fixed a few other minor MS emulation bugs reported by Evan Dummit.
* Added a number of unfixed MS emulation bugs to msbugs.txt, several of
  which were reported by Evan Dummit.
* A handful of documentation errors were also found and fixed.