refs #6670 - Fog 1.23

Follows https://github.com/theforeman/foreman/pull/1606.  I'll tag them too.  A brief test on EL6 seems to work OK.

excon 0.38.0
Task info: http://koji.katello.org/koji/taskinfo?taskID=131149
Task info: http://koji.katello.org/koji/taskinfo?taskID=131150
Task info: http://koji.katello.org/koji/taskinfo?taskID=131152

fog-core 1.23.0
Task info: http://koji.katello.org/koji/taskinfo?taskID=131155
Task info: http://koji.katello.org/koji/taskinfo?taskID=131156
Task info: http://koji.katello.org/koji/taskinfo?taskID=131157

fog-softlayer 0.3.9
Task info: http://koji.katello.org/koji/taskinfo?taskID=131143
Task info: http://koji.katello.org/koji/taskinfo?taskID=131144
Task info: http://koji.katello.org/koji/taskinfo?taskID=131145

ipaddress 0.8.0 (not F19 :))
Task info: http://koji.katello.org/koji/taskinfo?taskID=131161
Task info: http://koji.katello.org/koji/taskinfo?taskID=131162

fog 1.23.0
Task info: http://koji.katello.org/koji/taskinfo?taskID=131219
Task info: http://koji.katello.org/koji/taskinfo?taskID=131220
Task info: http://koji.katello.org/koji/taskinfo?taskID=131222