Bug 1559622 - Add note to rhq-server.properties about URL format (#347)

and values dependent on database configuration

modules/enterprise/server/appserver/src/main/scripts/rhq-container.build.xml

@@ -601,6 +601,11 @@ checkIfRunning(16);]]>
 #   - uncomment the Oracle settings below
 #   - adjust the values to match your environment
 #
+# For proper URL format and property values, you may need to consult your
+# database administrator or database documentation. This is an important
+# consideration when using Oracle Real Application Clusters or other data
+# replication or fail-over configurations.
+#
 # NOTE: rhq.server.database.password is not to be set to the actual password
 #       but instead should be the encoded password value as generated by:
 #          rhq-encode-value.sh(.bat)