Description of problem:

The newer deltacloud-core-ec2 requires a newer rubygem-aws that does not exist.

# yum update
Loaded plugins: product-id, rhnplugin, security, subscription-manager
Updating certificate-based repositories.
<snip>
Setting up Update Process
Resolving Dependencies
--> Running transaction check
---> Package aeolus-conductor.noarch 0:0.8.0-12.el6 will be updated
---> Package aeolus-conductor.noarch 0:0.8.0-13.el6 will be an update
---> Package aeolus-conductor-daemons.noarch 0:0.8.0-12.el6 will be updated
---> Package aeolus-conductor-daemons.noarch 0:0.8.0-13.el6 will be an update
---> Package aeolus-conductor-doc.noarch 0:0.8.0-12.el6 will be updated
---> Package aeolus-conductor-doc.noarch 0:0.8.0-13.el6 will be an update
---> Package aeolus-configure.noarch 0:2.5.0-8.el6 will be updated
---> Package aeolus-configure.noarch 0:2.5.0-9.el6 will be an update
---> Package deltacloud-core.noarch 0:0.5.0-2.rc1.el6 will be updated
---> Package deltacloud-core.noarch 0:0.5.0-4.rc1.el6 will be an update
---> Package deltacloud-core-ec2.noarch 0:0.5.0-2.rc1.el6 will be updated
---> Package deltacloud-core-ec2.noarch 0:0.5.0-4.rc1.el6 will be an update
--> Processing Dependency: rubygem(aws) >= 2.5.5 for package: deltacloud-core-ec2-0.5.0-4.rc1.el6.noarch
---> Package deltacloud-core-rhevm.noarch 0:0.5.0-2.rc1.el6 will be updated
---> Package deltacloud-core-rhevm.noarch 0:0.5.0-4.rc1.el6 will be an update
---> Package deltacloud-core-vsphere.noarch 0:0.5.0-2.rc1.el6 will be updated
---> Package deltacloud-core-vsphere.noarch 0:0.5.0-4.rc1.el6 will be an update
---> Package imagefactory.noarch 0:1.0.0rc2_17_g6a682b6-1.el6 will be updated
---> Package imagefactory.noarch 0:1.0.0rc3-1.el6 will be an update
---> Package imagefactory-jeosconf-ec2-fedora.noarch 0:1.0.0rc2_17_g6a682b6-1.el6 will be updated
---> Package imagefactory-jeosconf-ec2-fedora.noarch 0:1.0.0rc3-1.el6 will be an update
---> Package imagefactory-jeosconf-ec2-rhel.noarch 0:1.0.0rc2_17_g6a682b6-1.el6 will be updated
---> Package imagefactory-jeosconf-ec2-rhel.noarch 0:1.0.0rc3-1.el6 will be an update
---> Package oz.noarch 0:0.8.0-2.el6 will be updated
---> Package oz.noarch 0:0.8.0-3.el6 will be an update
---> Package rubygem-aeolus-cli.noarch 0:0.3.0-5.el6 will be updated
---> Package rubygem-aeolus-cli.noarch 0:0.3.0-6.el6 will be an update
---> Package rubygem-aeolus-image.noarch 0:0.3.0-4.el6 will be updated
---> Package rubygem-aeolus-image.noarch 0:0.3.0-5.el6 will be an update
--> Finished Dependency Resolution
Error: Package: deltacloud-core-ec2-0.5.0-4.rc1.el6.noarch (ce-rhel-6-candidate)
           Requires: rubygem(aws) >= 2.5.5
           Installed: rubygem-aws-2.4.5-2.el6_1.noarch (@ce-rhel-6-candidate)
               rubygem(aws) = 2.4.5

Version-Release number of selected component (if applicable):
 * deltacloud-core-ec2-0.5.0-4.rc1.el6.noarch