Sortedcontainers

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**Bugfixes**

* Added contains-key check in sorted dict equality comparisons.

**Miscellaneous**

* Added Python runtime comparison to documentation.
* Added sorted dict and set comparison to benchmark documentation.
* Added Travis-CI testing.

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**API Changes**

* Added ``bisect`` methods from ``SortedList`` to ``SortedDict`` interface.

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**Miscellaneous**

* Added Banyan module to benchmark documentation.

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**Miscellaneous**

* Added testing support for CPython 2.6, 2.7, 3.2, and 3.3 with full coverage.

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* Initial release of sorted list, dict, and set types.