Allow to specify a base != AssuanCommand for AssuanCommandMixin
Allow to specify a base != AssuanCommand for AssuanCommandMixin

svn path=/branches/work/kdab-post-4.0/kdepim/; revision=726247

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi