Description of problem:
The link provided when triggering RHEV upgrade, is broken.

See: https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.6/html/Installation_Guide/index.html

Version-Release number of selected component (if applicable):
rhevm-3.6.1.1-0.1.el6.noarch


How reproducible:
100%


Steps to Reproduce:
1. Setup a RHEV 3.5 system
2. Add RHEV 3.6 repos
3. Run engine-setup and follow the wizard

Actual results:
When pressing the link to the upgrade guide, it returns a 404 not found page
https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.6/html/Installation_Guide/index.html

"""Not Found

The page you are looking for is not here. It might have been moved, removed, or had its name and address changed. It might otherwise be temporarily unavailable for technical reasons.

The good news is that you can probably find what you are looking for by searching the site."""


Expected results:
RHEV 3.6 Install guide should be accessible via this link 


Additional info:
# engine-setup 
[ INFO  ] Stage: Initializing
[ INFO  ] Stage: Environment setup
          Configuration files: ['/etc/ovirt-engine-setup.conf.d/10-packaging-dwh.conf', '/etc/ovirt-engine-setup.conf.d/10-packaging-wsp.conf', '/etc/ovirt-engine-setup.conf.d/10-packaging.conf', '/etc/ovirt-engine-setup.conf.d/20-packaging-rhevm-reports.conf', '/etc/ovirt-engine-setup.conf.d/20-setup-ovirt-post.conf']
          Log file: /var/log/ovirt-engine/setup/ovirt-engine-setup-20151208174556-r67bnq.log
          Version: otopi-1.4.0 (otopi-1.4.0-1.el6ev)
[ INFO  ] Stage: Environment packages setup
[ INFO  ] Stage: Programs detection
[ INFO  ] Stage: Environment setup
[ INFO  ] Stage: Environment customization
         
          Welcome to the RHEV 3.6 setup/upgrade.
          Please read the RHEV 3.6 install guide
          https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.6/html/Installation_Guide/index.html.
          Please refer to the RHEV Upgrade Helper application
          https://access.redhat.com/labs/rhevupgradehelper/ which will guide you in the upgrading process.
          Would you like to proceed? (Yes, No) [Yes]: