[BUGFIX] Add missing default parameter for icongroup
[BUGFIX] Add missing default parameter for icongroup

benjaminkott/bootstrap_package,stweil/bootstrap_package,benjaminkott/bootstrap_package,stweil/bootstrap_package,MediaCluster/bootstrap_package,MediaCluster/bootstrap_package,benjaminkott/bootstrap_package,stweil/bootstrap_package,benjaminkott/bootstrap_package,MediaCluster/bootstrap_package,stweil/bootstrap_package