fix for user agent tests excon usage
[rackspace|compute] remove erroneous block argument to get_object
fixes #1588
[hp/openstack|compute] remove erroneous block argument to get_object; fixes issue #1588 for OpenStack and HP
Merge pull request #1589 from rackspace/block_fix

[hp/openstack|compute] remove erroneous block argument to get_object; fi...
[ovirt] Add support for reading the oVirt api version.
[ovirt] Added support for oVirt volume status.
[ovirt] Updated the blocking start logic to fit oVirt 3.1 api
Merge pull request #1591 from abenari/ovirt3.1

[ovirt] fix issues with oVirt 3.1 API disk locking status.
Merge branch 'master' of github.com:fog/fog into file_metadata