[OSE][6.2]AMQ6.2 and AMQ6.1 should allow to be installed together in OSE

AMQ-6.2.0 is a new cartridge for OSE. AMQ-6.1.1 is another cartridge which we have published. So they are two different cartridges for OSE.
[root@broker ~]# rhc cartridge-list
amq-6.1.1 JBoss A-MQ 6.1.1 for xPaaS web
amq-6.2.0 JBoss A-MQ 6.2.0 for xPaaS web

But if the system contains amq-6.1.1, and user wants to install amq-6.2.0. It will update amq-6.1.1.
[root@node1 ~]# yum install openshift-origin-cartridge-amq-6.2.0.redhat.068-1.el6op.noarch.rpm -y
Loaded plugins: priorities, product-id, security, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Setting up Install Process
Examining openshift-origin-cartridge-amq-6.2.0.redhat.068-1.el6op.noarch.rpm: openshift-origin-cartridge-amq-6.2.0.redhat.068-1.el6op.noarch
Marking openshift-origin-cartridge-amq-6.2.0.redhat.068-1.el6op.noarch.rpm as an update to openshift-origin-cartridge-amq-6.1.1.redhat.412-6.el6.noarch
openshift_node_puddle | 2.9 kB 00:00
rhel6 | 3.0 kB 00:00
rhscl | 2.9 kB 00:00
76 packages excluded due to repository priority protections
Resolving Dependencies
--> Running transaction check
---> Package openshift-origin-cartridge-amq.noarch 0:6.1.1.redhat.412-6.el6 will be updated
---> Package openshift-origin-cartridge-amq.noarch 0:6.2.0.redhat.068-1.el6op will be an update
--> Finished Dependency Resolution

Dependencies Resolved

=========================================================================================================================
Package Arch Version Repository Size
=========================================================================================================================
Updating:
openshift-origin-cartridge-amq
noarch 6.2.0.redhat.068-1.el6op /openshift-origin-cartridge-amq-6.2.0.redhat.068-1.el6op.noarch 270 M

Transaction Summary
=========================================================================================================================
Upgrade 1 Package(s)

Total size: 270 M
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Updating : openshift-origin-cartridge-amq-6.2.0.redhat.068-1.el6op.noarch 1/2
Cleanup : openshift-origin-cartridge-amq-6.1.1.redhat.412-6.el6.noarch 2/2
Verifying : openshift-origin-cartridge-amq-6.2.0.redhat.068-1.el6op.noarch 1/2
Verifying : openshift-origin-cartridge-amq-6.1.1.redhat.412-6.el6.noarch 2/2

Updated:
openshift-origin-cartridge-amq.noarch 0:6.2.0.redhat.068-1.el6op

Complete!