Merge branch 'release-0.7.0'

* release-0.7.0: (21 commits)
  Bumping the version to 0.7.0
  Adding regions for SWF.
  Some updated models.
  Further work on #28.
  Set maxDiff to None for ec2 response parsing
  Removing jsondoc attribute customization from IAM model.  No longer needed with file-based parameters.
  The name of the SigV3 auth should be v3 not v3https.
  Make sure we have a dict before trying to reference it's content.
  fixing OpsWorks unit test.
  Raise a NoCredentialsError when no credentials are found.  Fixes #29.
  Fixing typo bugs in handling of list parameters.  Fixes #27.
  Removing unicode prefixes on string constants.  Python 3.x was not amused.
  Responses now correctly map xmlnames to key names.  Fixes #28.
  Regen latest models
  Remove newline in xml element in docs
  Update rds and redshift models
  Update sqs model
  Extract iam customization into .extra.json file
  Update ec2 model
  Update models with new dict based operations
  ...
Merge branch 'release-0.8.0'
Merge branch 'master' of github.com:boto/botocore
Bump ec2 api version, remove membered_lists
Merge branch 'hotfix-0.8.1'
Bumping to version 0.8.1.