grpc - RPC system from Google

	Commit message (Collapse)	Author	Age
*	Minor comment update	murgatroid99	2015-02-09
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*	Updated event.cc with new changes	murgatroid99	2015-02-09
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*	Remove timeval functions	David Klempner	2015-02-04
\| \| \| \| \|	They only had one caller, which could easily be converted to use timespec instead of timeval.
*	Prepare for the new batch call API.	Craig Tiller	2015-02-02
\| \| \| \| \|	Rename all core API functions that are on their way to deprecation with an _old tag across all wrappings.
*	Switched extension to return faster sliceable Buffers	murgatroid99	2015-01-29
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*	Changed low-level metadata API to be more reasonable	murgatroid99	2015-01-28
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*	sync up with master	Yang Gao	2015-01-27
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*	Moved extension and JS files to separate directories	murgatroid99	2015-01-26