Add UaaCACert to TC integration test fixture
"SystemDomain": "vcap.me",
"MetronPort": 37474,
"UaaHost": "http://127.0.0.1:5678",
+ "UaaCACert": "fixtures/loggregator-ca.crt",
"UaaClient": "bob",
"UaaClientSecret": "yourUncle",
"MonitorIntervalSeconds": 1,
