[vcloud_director] Use options in instantiate.
[vcloud_director] 'Set-Cookie' may be lowercase
[rackspace|load balancers] fixing broken test
Merge branch 'master' of github.com:fog/fog into lb_test_fix
Merge pull request #2113 from nosborn/vcloud_director_set_cookie

[vcloud_director] 'Set-Cookie' may be lowercase
Merge pull request #2114 from nosborn/vcloud_director_instantiate_options

[vcloud_director] Use options in instantiate.
Merge pull request #2115 from rackspace/lb_test_fix

[Rackspace| Load Balancers] fixing broken tests
Strip new lines from PackedPolicySize response from GetFederationToken
Add minimal documentation in GetFederationToken request
Add mocks for GetFederationToken and enable use
Merge pull request #2118 from gregburek/aws-getfedtoken-mocks

Add mocks for AWS STS GetFederationToken api call