Updated the GS classes to use new-style classes as well.
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Merge branch 'hotfix-2.22.1'
Support for multiple credential profiles.
Fixing SQS tutorial to correctly describe behavior of the write operation.  Fixes #1985.
Merge pull request #1986 from garnaat/fix-1985

Fixing SQS tutorial to correctly describe behavior of the write operation
Merge remote-tracking branch 'zachm/add_profile_credentials_config' into develop
Fixes #1979.
Updated conn params for security_token.
Added a fix for anonymous S3 requests.

The added ``time.sleep`` is needed in the tests to let the ACL take effect. Without it, the test consistently fails for me.
Add support for configuring SNS and SQS endpoints through boto.cfg
Fixes #1991.
Added a missed import.
Fix LIST MULTIPART UPLOADS api by re-adding delimiter and prefix params.

This has been broken since the below commit added validation of kwargs

   commit bace7b66c999873cd5d23a54cd9570f912e89b93
   Author: Daniel G. Taylor <danielgtaylor@gmail.com>
   Date:   Fri Oct 25 11:22:20 2013 -0700

       Validate S3 method kwarg names to prevent misspelling. Fixes #1782.
Add a unit test with delimiter and prefix handling.
Only pull name tags for extant instances
Fix boto import for invocations without a region
Merge remote-tracking branch 'jimbrowne/elbadmin-boto-import' into develop
Fixes #2002.
Merge branch 's3-anon-fix' into develop
Fixes #1988 & #1992.
Merge remote-tracking branch 'jimbrowne/elbadmin-dead-instances' into develop
Fixes #2001.
Merge remote-tracking branch 'tpodowd/fix_broken_multipart_listing' into develop
Fixes #2000.
Merge branch 'backfill-sec-token' into develop
Fixes #1989, #1942.