* remove parent ptr from unregistered calls -- unneeded
* begin unregistered high level server loop
* undo changes to highlevel server, add mkConfig for unregistered server
* move call CQ create/destroy into call create/destroy
* async normal call function
* preliminary unregistered server loop for non-streaming methods
* working unregistered highlevel example
* loop counters for benchmarking
* changes for benchmarking, add ruby example server for benchmarking
* async version of withCall, refactor unregistered server loop to handle all method types
* unregistered client streaming
* add remaining streaming modes
* unregistered server streaming test
* unregistered streaming tests
* add error logging
* fix bug in add example
* remove old TODOs
* fix bug: don't assume slices are null-terminated
* add TODO re: unregistered client streaming functions
* get_peer: fix todo
* add documentation for server registered call function
* test roundtrip conversion of larger bytestrings (32 mb)
* Add channel args interface: currently supports user agents and compression.
* fix build failure after stack clean
* fix testWrongEndpoint
* test that unregistered requests are ignored by request_registered_call
* handler returns status code, drop Grpc prefix from status codes
* add tests for server misbehavior
* fix leaks in pluck and next
* fix deadline leak
* fix slice leak
* always free metadata
* add full TODO in case we get rid of unregistered code
* shorter deadline to make test faster
* update for grpc 0.14.0
* fix another valgrind complaint
