grpc - RPC system from Google

	Commit message (Expand)	Author	Age
*	Merge github.com:grpc/grpc into ignore_connectivity	Craig Tiller	2016-03-31
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\| *	Merge github.com:grpc/grpc into copyright-fix	Craig Tiller	2016-03-31
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\| * \|	Update copyrights	Craig Tiller	2016-03-31
\| \| *	Merge pull request #5691 from ctiller/idempotent	Nicolas Noble	2016-03-30
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\| \| * \|	Merge github.com:grpc/grpc into accounting	Craig Tiller	2016-03-28
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* \| /	Merge branch 'idempotent' into ignore_connectivity	Craig Tiller	2016-03-28
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* \|	Merge github.com:grpc/grpc into idempotent	Craig Tiller	2016-03-28
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*	Fix includes	Craig Tiller	2016-03-25
*	Fix include guards	Craig Tiller	2016-03-25
*	Stage #1 of core breakup: move everything under lib	Craig Tiller	2016-03-25