[rackspace|storage] added support for container metadata; added directory tests
Merge branch 'master' of github.com:fog/fog into dir_metadata
[rackspace|storage] Cloud Files will not process a header without a value so I added a stand in value for nil
Merge branch 'master' of github.com:fog/fog into dir_metadata
[rackspace|storage] added delete method to metadata
[rackspace|compute_v2] Added note indicating that RackConnect users should use Server personalization rather than the bootstrap method
Merge branch 'master' of github.com:fog/fog into dir_metadata
[rackspace|compute] added test for put_container with an optional parameter
[rackspace|storage] updated directory to lazy load metadata when necessary
[rackspace|storage] added tests for metadata class; fixed bug with method missing
[rackspace|compute] updated mocking framework to support any flavor or image
Merge branch 'master' of github.com:fog/fog into dir_metadata
[openstack|network] Added missing Network model attributes

The following patch adds the following missing attributes:

+---------------------------+--------------------------------------+
| Field                     | Value                                |
+---------------------------+--------------------------------------+
| provider:network_type     | gre                                  |
| provider:physical_network |                                      |
| provider:segmentation_id  | 1                                    |
| router:external           | False                                |
+---------------------------+--------------------------------------+

Not sure if the code style I've used for the attributes is OK though,
I did it so I don't break the 80 col. barrier.

Added also a small test for the new and existing attributes.
Merge pull request #1581 from bvox/quantum-network-attributes

[openstack|network] Added missing Network model attributes
joyent resize smartmachine incorrect class type
Merge pull request #1585 from angusscown/joyent_resize_bug

joyent resize smartmachine incorrect class type
Merge pull request #1567 from rackspace/bootstrap_note

[Rackspace|Compute_v2] Added note about bootstrap method and RackConnect
Merge pull request #1576 from rackspace/mock_blues

[rackspace|compute] updated mocking framework to support any flavor or image
Merge pull request #1563 from rackspace/dir_metadata

[Rackspace|Storage] Added support for container metadata
rebasing cdn branch with latest master