v0.1.5

c6dfcbb Fixed encoding issue with native streams.
4e6043f added sep option to lines transform.
28b9d1f added child_process device.
#3 fixed incompatibility with streamline fast mode.
#4 mongodb device can update existing documents (could only insert before).
#5 added binary helper: convenient and efficient operations on binary streams.
#7 added support for mongo-style filters in reader API.
#8 fixed nodify() call (was not sending end event).
#3 fixed galaxy wrapper for join() call.
#9 fixed multipart transform.