tests: Re-recorded test cases after (1) applet bar widget change and (2) event recorder change to object name assignment.
OpBlockwiseObjectClassification: Fixed a slot dtype.
tests: run_each_unit_test.sh now works when run from the root dir or the tests dir.
travis: Don't run recorded tests.
make normalization optional to fix #408, #405
SplitBodyCarving: Added Readme
OpDataSelection: When applying user-specified dataset metadata, don't overwrite existing fields with 'None'.
SplitBodyCarving: Refactored parsing function in preparation to move it into the operator.
wip