Merge from trunk
Release 3.8.1: adresses 3429, 3437 and 3438
Version 3.8.0
version 3.7.1
Last minute change: spanish translation
Version 3.7.0
add missing modules
Version 3.5.1
Version 3.5.0
Wrong version number.
Update version number. This should have been done after the 3.3 release, but I forgot.
Version 3.3.1
Version 3.3.0
Backporting a few things from trunk to tags/3.2.0
Version 3.0.0