some useful methods to edit group membership added
some useful methods to edit group membership added

muffato/public-plugins,Ensembl/public-plugins,muffato/public-plugins,andrewyatz/public-plugins,Ensembl/public-plugins,andrewyatz/public-plugins,Ensembl/public-plugins,muffato/public-plugins,andrewyatz/public-plugins,muffato/public-plugins,andrewyatz/public-plugins,andrewyatz/public-plugins