added logging for stream end
added additional null callback

skips on error or null result
added client.eachRow
added documentation
client.eachRow and client.streamRows are the same method.

* Removed additional call for streamField callback
* Removed instance scoped variable: skipFreeStream
* Added some unit tests on streamRow to assert errors on fail
FrameStreamingParser: moved emit out of Parsing Error try.
version bump: 0.3.2