[BUGFIX] Add fontloader css and js only to header if content exists - fixes #703
[BUGFIX] Add fontloader css and js only to header if content exists - fixes #703

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