[rackspace|identity] Correctly populate model from request data.

Previously, the model was being incorrectly loaded from request data. As a
result, the username and apiKey properties were always nil. This fixes parsing
and improves the tests to catch this type of bug in the future.
[openstack|compute] fix get_metadata call
[rackspace|identity] Remove unused get_credentials request.
Merge pull request #1526 from bleything/fix_openstack_compute_metadata_get

[openstack|compute] fix get_metadata call
[openstack|compute] rename meta_hash to to_hash; make it public
Merge pull request #1528 from bleything/metadata_to_hash

[openstack|compute] rename meta_hash to to_hash; make it public
[glesys] Consistent naming of attributes
Merge pull request #1533 from smgt/glesys-consistent-attribute-naming

[glesys] Consistent naming of attributes
Add initial support for pulling in >100 zones via Zones.each.

Uses the hypermedia links returned by the response body to
determine whether or not there are more results available.
Fix warning
version
Merge pull request #1527 from bradgignac/rackspace-identity-credentials

[rackspace|identity] Fix credential parsing.
[aws|dynamodb] fix port to match https default
closes #1531
reverse version change
Merge pull request #1536 from lawso017/verify_peer_warning

Fix warning
Get rid of the extra load() calls.
Merge pull request #1535 from minter/paginated_domains_via_each

Add support for pulling in >100 zones via Zones.each.