Description of problem:
Client uses conf file [server] host entry for both host resolution and ssl cert verification

How reproducible:
always :)

Steps to Reproduce:
1. Setup server w/ default pulp ca cert
2. Setup client to point to server
3. Client operations fail
  
Actual results:
# pulp-client repo list
ERROR: The server hostname you have configured in /etc/pulp/client.conf does not match the
hostname returned from the Pulp server you are connecting to.  

You have: [10.0.1.67] configured but got: [localhost.localdomain] from the server.

Please correct the host in the /etc/pulp/client.conf file

Expected results:
These results aren't necessarily unexpected, but we should allow for an override value in the ssl verification

Additional info:
A use case that we cannot address with our current behaviour is and internal read intranet) client pointing to a pulp-server that is exposed both internally and externally but with different fully qualified domain names on each interface.