Fixed issue where services with a global endpoint could have their regions set incorrectly for signing.
Merge pull request #64 from jeremeamia/bugfix-global-endpoints

Fixed signing issue with incorrect region for global services
Fixed issue where user agent strings were being appended with the same value multiple times when using the same command object.
Added a way to more easily share and test examples in docs
Created a Sphinx plugin to inject PHPUnit test snippets into RST output
Added testable example code for Amazon S3 and Amazon DynamoDB
Updated Sphinx plugin to better cache service descriptions
Adding more flexibility to integ tests and examples
Adding descriptions to examples
Fixing example description
Merge pull request #65 from aws/examples

Adding the ability to share integ tests as examples
Adding version as a client configuration option
Merge pull request #66 from aws/version_number

Adding version as a client configuration option
Updated the SQS integ test
Fixed an issue where default timeouts could not be easily changed
Updating Sphinx plugin to work with sprintf templates in clients
Adding key information to DynamoDB model
Updating DynamoDB client and classes to the 2012-08-10 APi version [WIP]
Using string compare instead of version compare for API version checks in the session handler
Added Examples/Integ tests for the 20120810 version of DynamoDB
Updated the DynamoDB performance test to use the new API version
Updating DynamoDB classes/tests to account for recent changes to handling versions
Updated integration tests to support the 2012-08-10 API version of DynamoDB