harness tests for url/http based tenants with register/discovery and update/query
curlXml2 -> curlXmlTenants
two more harness tests for tenants - subscriptions
Merge branch 'feature/322' into task/feature_322_tenant_harness_tests
Some "-multitenant" -> "-multiservice" additional fixes

Conflicts:
	test/testharness/http_tenant_name_error.test
FIX test harness for tenants (ongoing)
curlXmlTenants now has only THREE parameters
FIX tenant test harness
FIX unhardwire listener port literals and use shell variables
FIX renaming AUX -> 2 in testEnv.sh variables
FIX hardwires in subscription harness test for tenants
FIX port hardwire in test harness for tenant (subscribe)
ADD entry to CHANGES_NEXT_RELEASE
Merge pull request #345 from telefonicaid/task/feature_322_tenant_harness_tests

register/discovery and update/query harness tests for url/http based tenants