Must include number of instances when calculating reservations across orgs and spaces
Merge pull request #32 from cloudfoundry-incubator/FixReservationCalculation

Include number of instances when calculating reservations across org and spaces
Calculate number of service instances for org and spaces tabs from CCDB service_instances
Merge pull request #33 from cloudfoundry-incubator/GetOrgAndSpaceServicesFromServiceInstances

Calculate number of service instances for org and spaces tabs from CCDB service_instances
This will simplify the cc_rest_client and make it more consistent with Utils.http_request as well
Merge pull request #34 from cloudfoundry-incubator/SimplifyCCRestClient

Simplify cc_rest_client and make it more consistent with Utils.http_request