Added some benchmark tests
Started conversion to JSON protocol
Changed pool implementation to use fatih/pool
Fixed issues with continue queries
Cleaned up benchmarks
Removed concurrency from benchmarks
Merge branch 'feature/json-protocol' into develop

Conflicts:
	connection.go
	session.go
Removed funcWrap of r.Args
Updated the protobuf file
Added support for the binary data type
Added the binary_format option
Added the index_rename command
Renamed ReturnVals to ReturnChanges
Renamed the upsert optarg with conflict
Added the Index optarg to Distinct
Added the ArrayLimit run optarg
Merge branch 'feature/rethinkdb_v1.14' into develop
Started conversion to JSON protocol
Changed pool implementation to use fatih/pool
Fixed issues with continue queries