Log Message:
update openbox to 3.6.  changes:
* Added various new abilities to If action, including the <query> tag,
  matching class, name, role and window type.
* Added ForEach action.
* Restore the <center> option for window placement.
* New GrowToFill action.
* Updated Portuguese and Polish translations.
* New Galician translation.
* Added strict option to ToggleShowDesktop action.
* Speed optimization in rendering code.
* New <position> tag for ShowMenu action allows placing menus other
  than at the mouse cursor.
* Fix some corner cases of relative position to work correctly.
* Allow specifying multiple mousebinds in one tag as we already do
  for keybinds (separated by spaces, as "W-Return M-S-F3" for example).
* Added option rebindOnMappingNotify option, on by default, which
  controls if we update binds when the keyboard layout changes at runtime.
* The resize action now only considers the part of the client that is onscreen
  for purposes of picking an action to perform.
* Make desktop actions non-interactive (means you can have more actions bound
  to a key after them, and the dialog disappears on a timer instead of when
  releasing the modifier keys).
* obxprop is now not pathologically slow when printing very long arrays.
* Fix menu accelerator underlines sometimes not showing up.
* Fix so you can click menu entries before the menuHideDelay expires if it's
  a new click.
* Don't readd the X event fd to the poll set every time we reconfigure.
* Fix some specialized button bitmaps not loading from the correct files.
  (toggled + pressed or hover would just be the base toggled image).
* Various small bugfixes.