Msgpack-numpy

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* Set default use_bin_type and raw params of Packer and Unpacker classes the same as in msgpack (39).
* Convert docs to Markdown.

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* Set defaults appropriate to msgpack 1.0.0 (38).

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* Configure contiguous integration with Travis.
* Move unit tests out of msgpack_numpy module.
* Add workaround for issue handling n-dim arrays on MacOS (35).

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* Fix regression handling noncontiguous arrays (34).

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* Check Py version before defining encode and tostr funcs.
* Eliminate deprecation warnings, raise minimum required msgpack version (31).
* Fix Python 2 support (32).

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* Access ndarray memory view directly to slightly speed up encoding (30).