Dhp

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* dhp.math.log_nfactorial - using Ramanujan's approximation
* dhp.math.prob_unique - probability of no collision
* dhp.math.choose - nCk
* dhp.VI.to_unicode - helper for dealing with unicode in Py2
* dhp.VI.set_output_encoding - helper for dealing with unicode in Py2

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* added dhp.structures.ComparableMixin to aid in creating classes with rich
comparisons.
* dropped support for Python3.2

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* integration with Appveyor CI for windows testing
* :doc:`dhp.tempus` - humane time interval transforms

* dhp.tempus.interval_from_delta - transform a datetime.timedelta to an
interval.
* dhp.tempus.delta_from_interval - transform an interval string to a
datetime.timedelta object.

* :doc:`dhp.cache` - a simple cache class

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* dhp.doq.DOQ - implemented range operator for lookups
* dhp.VI - StringIO - export StringIO from the proper package based on py2/py3
* dhp.search - Improved documentation.
* dhp.math - Improved documentation. Improved type tolerance. int/float/decimal
* test coverage improved on all submodule that were less than 100%

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* dhp.doq.DOQ - Duke is on the job to handle all your simple data source querying needs.

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* dhp.structures.DictDot - initial implementation