Ensure rackspace cloudidentity live tests pass where applicable
Disables incompatible keystone tests
JCLOUDS-105 - fixing a problem caused in cases where vm.isPasswordEnabled() is false and no keypair is specified.
Cleaning up changes from JCLOUDS-106
JCLOUDS-138. Add CloudStackImageExtension support.
JCLOUDS-101 - Add SecurityGroupExtension for compute

- Adds the SecurityGroupExtension to compute, with tests and stub
support.
- Gets everything else to actually build against this.
- Unifies on compute's IpPermission/IpProtocol, eliminating EC2's.
- Converters from EC2/Nova/CloudStack SecurityGroup (and rules, for
the latter two) to the compute SecurityGroup (and rules, etc).
- EC2SecurityGroupExtension and tests.
- AWSEC2SecurityGroupExtension and tests - depends on JCLOUDS-99.
JCLOUDS-150 - Removal of async from AWS - specifically EC2

...and EC2-related elsewhere. Also moved *Client -> *Api, and moved
everything from .../services to .../features, and threw in a bunch of
Optionals to fit the EC2Api approach.

And a very big tip of the hat to nacx for figuring out the generics
stuff my brain just could not handle. =)
JCLOUDS-151 - CloudStack refactored to remove async, *Client renamed to *Api.
JCLOUDS-149: Reuse checkstyle configuration
JCLOUDS-126 - Support and tests for region selection in swift-keystone BlobStore
JCLOUDS-160: Support tags in EC2 images

Based on the work made by Brock Noland
Added test environment for Quantum v2.0 client

This patch adds test environment for the future
Quantum v2.0 client implementation.

Signed-off-by: Andrey Trubitsyn <andrey@sentilla.com>
Checkstyle fixes
A 401 error should result in re-authenticating for a new token
Quantum renamed to Neutron
Add Swift-specific MD5 checksum header

Tested against cloudfiles-us, hpcloud-objectstorage, and
swift-keystone.  Reference for ETag:

https://answers.launchpad.net/swift/+question/157064
JCLOUDS-161: large blob support for Azure

Large blob support for AzureClient; the next step of this is to
support PutOptions.multipart and digest a blob into 4M parts. This
just implements the Azure interaction.
Set provider id in AtmosClientLiveTest

This allows Atmos live tests to run.
[trivial] demote Boolean to primitive
Add Atmos-specific MD5 checksum header

Tested that Atmos Online and Synaptic Atmos both enforce this.
Upgrade to gson 2.2.4
https://issues.apache.org/jira/browse/JCLOUDS-117