Description of problem:
At the end of installation, katello-installer instructs the user to access the integrated capsule on port 9090. However, if the user clicks/opens the link provided via the katello-installer command, they are presented a non-useful error page. 

Version-Release number of selected component (if applicable):
katello-installer-0.0.64-1.el6sat.noarch


How reproducible:
100%

Steps to Reproduce:
1. install Sat 6. The installer provides similar output to:

  Success!
  * Katello is running at https://satellite.example.org
      Default credentials are 'admin:*****'
  * Capsule is running at https://satellite.example.org:9090
  * To install additional capsule on separate machine continue by running:"

      capsule-certs-generate --capsule-fqdn "$CAPSULE" --certs-tar "~/$CAPSULE-certs.tar"


2. browse to https://satellite.example.org:9090/
3. user is presented with an error page stating:

"Sinatra doesn’t know this ditty.


Try this:
get '/' do
  "Hello World"
end"

Expected results:

If the integrated capsule is not meant to be interacted with directly over port 9090, then we should:

* Remove the 'Capsule is running.....' output from the installer
* Update the error page that is provided on port 9090 to something more informative, such as "the integrated capsule isn't meant to be interacted with directly"