Require fog/version for User-Agent header
Fix typo: Fog::Connection is deprecated, not Fog::XML::Connection.

Commit 0e1daf3d did a mass rename and accidentally renamed the intended deprecated method.
Merge pull request #3311 from TerryHowe/master

Require fog/version for User-Agent header
Merge pull request #3314 from jrafanie/fog_connection_is_deprecated_not_fog_xml_connection

Fix typo: Fog::Connection is deprecated, not Fog::XML::Connection.