Merge pull request #260 from sosiouxme/enterprise-1.2

enable RHSCL channel on install so that 1.2 updates continue
<openshift.ks> Bug 1050183 - Install script has activemq replicant password hard-coded as "password"
https://bugzilla.redhat.com/show_bug.cgi?id=1050183

Changed hardcoded activemq replica set password to be assigned via the corresponding variable.
Bug 1057726 - Remove jetty.xml from ActiveMQ configuration
<install> Remove the jetty and jetty realm configuration

- Add comment to tell users that they should enable authentication and
  set passwords if enabling jetty.xml
Merge pull request #296 from detiber/1.2-activemq-5.9.0

<install> Changes for activemq-5.9.0 update - enterprise 1.2
<install> note that broker auth must be synchronized