Slim down some of the metrics charts attributes.
Slim down some of the metrics charts attributes.

hawkular/hawkular-charts,ammendonca/hawkular-charts,mtho11/hawkular-charts,mtho11/hawkular-charts,ammendonca/hawkular-charts,hawkular/hawkular-charts,mtho11/hawkular-charts,hawkular/hawkular-charts,tsegismont/hawkular-charts,tsegismont/hawkular-charts,tsegismont/hawkular-charts,ammendonca/hawkular-charts