Description of problem:
After applying patch suggested in issue 208 for httplib2, the hostname check fails if the dns name is only one element. The patch suggested returns a string instead of an array and then the validation fails. Working without applying this patch (#208)

Version-Release number of selected component (if applicable):
python-httplib2

How reproducible:
100% Reproducible while connecting to a server with certificate with only one dns entry

Steps to Reproduce:
1. Server with SSL configured with only onw DNS entry as shown in results
2. open httplib connection using ssl
3.
  
Actual results:
Authorization Failed: Unable to communicate with identity service:
Server presented certificate that does not match host keystonessl.cern.ch: {'notAfter': 'Jun  7 06:45:20 2013 GMT', 'subjectAltName': (('DNS', 'keystonessl.cern.ch'),), 'subject': ((('domainComponent', u'ch'),), (('domainComponent', u'cern'),), (('organizationalUnitName', u'computers'),), (('commonName', u'keystonessl.cern.ch'),))}. (HTTP 400)

Expected results:
Authorization Succeed

Additional info:

@@ -942,11 +942,12 @@ class HTTPSConnectionWithTimeout(httplib
           list: A list of valid host globs.
         """
         if 'subjectAltName' in cert:
             for x in cert['subjectAltName']:
                 if x[0].lower() == 'dns':
                      return x[1]       <----- if only one element return a string
         return [x[0][1] for x in cert['subject']
                 if x[0][0].lower() == 'commonname']