Log Message:
Update to 2.1.13.

2.1.13:
  * Brown paper bag bug in alsa backend introduced in the previous version.
2.1.12:
  * Fix mousewheel scrolling in the balance slider (pointed out by
          Philip Lafleur <headcheese@carolina.rr.com>)
  * es translatoion by YoaR <yoar@users.sourceforge.net>
  * Backend support for switches, not available in the frontend yet
2.1.11:
  * Added alsa support !
2.1.10:
  * Updated french translation by Jérôme UZEL <jerome.uzel@free.fr>
  * Fixed some spelling errors in the info thanks to A Costa <agcosta@gis.net>
  * React on horizontal scrolling correctly