Bandoleers

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- Expand supported redis package versions

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- Upgrade to queries 2.0.x.
- Drop support for Python 2.6.

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- Add raw HTTP support to ``prep-it``
- Ignore data files that look like temporary files. This specifcally
ignores files that start with a period and files that end with a tilde.

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- Remove Cassandra support

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- Support Python 2.6

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- Make the platform directory name an option for ``prep-it``
- Add ``--sleep`` parameter to ``wait-for``
- Normalize parameter processing between commands
- Do not create a postgres database if the database-specific
environment variable exists.
- Add support for ``tcp://`` in ``wait-for``