Update hawkular limits
osamet_cassandra_node: 2
osamet_cassandra_limits_memory: 2G
osamet_cassandra_requests_memory: 1G
-osamet_hawkular_limits_memory: 2.5G
-osamet_hawkular_requests_memory: 1.5G
+osamet_hawkular_limits_memory: 3G
+osamet_hawkular_requests_memory: 2G
osamet_heapster_limits_memory: 3.75G
osamet_heapster_requests_memory: 0.9375G
