Edrn-summarizer

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* Updated edrn.summarizer with json
* CA-1329, Create a set of summarization services that summarizes and serves json data for visualizations as well as external data sources

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* First release
* Generates summarized data from dmcc
* CA-1340, edrn.summarizer tests fail

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* unreleased version
* Generates summarized data from dmcc


.. References:
.. _EDRN: http://edrn.nci.nih.gov/
.. _Summarizer: http://w3.org/Summarizer/