Original request: https://bugzilla.redhat.com/show_bug.cgi?id=1318454

Add note to the following sections of the Configuration Guide and Installation guides that it is not supported to configure more than one JBoss EAP instance as a system service on a single machine.

• https://access.qa.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.1/html-single/configuration_guide/#set_up_domain_single_machine
• https://access.qa.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.1/html-single/installation_guide/#configuring_jboss_eap_as_a_service_in_red_hat_enterprise_linux_rpm_installation

See https://bugzilla.redhat.com/show_bug.cgi?id=1318454 for original request and more details.