v0.9 December 11, 2011
    * restore border and maximized state when untiling
    * add setting to stack in rows or columns
    * toggle between rows and columns
    * add setting to choose key hints
    * add setting whether to display the window title

v0.5 July 17, 2011
    * swap windows
    * move windows
    * change focus to identified window
    * move transitions

v0.1 May 14, 2011
    * basic tiling