Added CustomMediaTypes
Use javax.ws.rs.core.MediaType.* and org.rhq.metrics.restServlet.CustomMediaTypes.APPLICATION_VND_RHQ_WRAPPED_JSON
Added some static imports
Added PingHandler
Unused import
Added TenantHandler
Added LegacyMetricsHandler
Simple rename to TenantsHandler
Merge pull request #86 from tsegismont/split_metric_handler

Split metric handler