[1.2.0]
  * Now, boost::program_options is not required.

  * added GUI controls  to change the auto trace range.

  * supported keepaway mode.

  * added ball travel marks on the mouse measure line.

  * added '--replay-speed-ratio' option to control the logplayer's
	replay speed..

  * The Formation Editor is split from soccerwindow2 binary. A new
	binary, fedit, will be built and installed.

  * libraries related to the formation are moved to librcsc.

[1.1.1]
  * fixed a compilation problem on some platform. This problem is
	caused by the type mismatch between char and rcsc::PlayMode.

[1.1.0]
  * Added a new formationn construction method using the delaunay triangulation.

  * Added 'kill server' menu.

  * added new drawable object types, triangle, rect and circle in the
    debug server.

  * added --auto-quit-mode command line option.

  * added 'Replace' button to the formation editor.

  * The data structure of formation system is totally changed.

  * Now, we can invoke the custimized rcssserver with the command line
    options of soccerwindow2 as follows:

    $ soccerwindow2 --server-path $HOME/bin/rcssserver-mine
