Avoid unecessary lambdas when using map()
ObjectClassification: Moved object label assignment code from the gui into the operator for headless mode and testing.
ObjectClassification: Replace NaNs in the feature matrix with 0.0 immediately before training the classifier.
AppletSerializer: Fixed a bug that caused multi-slots not to be resized of their length was more than their serialized representation.
(e.g. if a multi-slot had len=2, deserializing into it from a project file where that slot was only len=1 did not resize the slot to len 1.
Object applets: All slots passing features must use stype=Opaque.
OpObjectClassification: Fixed a crash that could occur of more than one time step was present, but I'm not sure if I did it right.
Search for a warnings.warn FIXME
tests: Updated object extraction and object classification tests to work with the latest version of those operators.
tests: Added a simple test for blockwise object classification.
revert me!