Merge branch 'hotfix-2.9.2'

* hotfix-2.9.2:
  Bump version to 2.9.2
  Add boto.support to setup.py
Merge branch 'release-2.9.3'

* release-2.9.3: (33 commits)
  Bumping version to 2.9.3
  Added release notes for 2.9.3.
  Added docs on how to use parallel scan from the high-level API.
  Updated the high-level DDBv2 interface to support parallel scan.
  BACKWARD-INCOMPATIBLE: Changed ``error_code`` to ``error_id`` to match the DataPipeline API.
  Fixed broken docs to appease Sphinx.
  Updated Elastic Transcoder with new API options.
  Changed boto doc string to clarify that EU means European Union for GCS
  Added an initial CONTRIBUTING doc (for GH).
  Added parallel scan support in DynamoDB v2.
  Improved the way DynanmoDB v2 connections get created.
  Added config-based region support to DynamoDBv2.
  Bump copyright to 2013 for cloudwatch unittest
  Fix build break in cloudwatch test
  Updated Opsworks to add ELB support & handle the latest parameters.
  Added tests for the previous CloudWatch patch.
  Fix variable overwrite in build_put_params
  Added tests to verify the SigV4 port behavior.
  Add port to host header when necessary for signature V4
  Fixed a test failure involving connections.
  ...
Fix for bug in dict parsing.
Merge branch 'hotfix/md_creds' into develop