The last numbers in timestream are always zero.

* timestream/manipulate/pipecomponents.py (ResultingFeatureWriter.argNames):
self.timestamp format changed to %Y_%m_%d_%H_%M_%S_00
(ResultingFeatureWriter._guessTimeStamp): Now uses self.timestamp for the
default output.
Indexes of csv cols shall also be unicode utf-8

* util/derandui.py (DerandomizeGUI._addCsv): Subject.
Make sure everything is a primitive type for JSON.

* scripts/run-pipeline.py (genConfig, genInputTimestream): datetime.datetime and
datetime.time are not handled correctly by JSON. make sure they are all
dictionaries.