Log Message:
Update to 0.15.0:

Changes in version 0.15.0 from 0.14.0
-------------------------------------

- Change default AI level to 2.
- Fix incorrect score in game logging.
- Fix compilation error (Reported by Paul Pogonyshev).
- Add Alternate and Random AI color mode in Preference dialog box.
- Add new setting 'Show last move' in Preference dialog box.
- Fix gen_pattern bug that fails to close pattern file.
- Generate pattern and book from more GGS games.
- Add random game support in GTP frontend.
- Add driver to play two GTP against each other via 'aiai' executable.
  It is still not user friendly.  You must modify 'cmd_black' and
  'cmd_white' in the source code and build via 'make aiai' to try
  different AI parameters.  Use 'aiai --help' to list all command
  line options.
- Reduce race condition modifying game log.
- Avoid wipe out during AI midgame evaluation.

Changes in version 0.14.0 from 0.13.0
-------------------------------------

- Add experimental GTP frontend.  This allows future AI tuning
  and game server support.  It is tested with Quarry.  Only 8x8
  and no time limit games are supported.  Use 'gtp-rhino --help'
  to list all command line options.
- New configure options --enable-gnome (enabled by default) and
  --enable-gtp (also enabled by default).

Changes in version 0.13.0 from 0.12.0
-------------------------------------

- Add game open function.
- Transposition table is temporarily disabled as it seems to
  cause problem with AI calculation.
- Improve program startup speed.
- i18n fixes in various places.
- Size of open book file is reduced.
- Fix computer thread cancellation problem.
- Change log file format to GGS.  This supports random game logging.
- Fix problem restarting game when board opening preference is changed.
- Fix Game History window selection when window is opened during view
  mode.
- Fix AI pattern data bug when data is processed from GGS games.