Removed most uses of Tracer and @traceLogged per issue #472
tests: Skip headless pixel classification test, which needs to be rewritten.
Serializers:
- SerialListSlot: Fixed deserialization of empty lists.
- Multislot deserialization: If the project file has fewer entries than the slot we're deserializing to, don't resize the slot, but DO disconnect the subslots that have missing entries in the project file.
PixelClassification: Gui: Fixed an issue that caused label deletion not to work properly due to label names slot being out-of-sync with label list model.
(Fixes an issue introduced by commit b307dc27025f7a2a354f05f9289380d58ff497ec)
tests: Fixed OpDataExport test.
Merge branch 'master' of ssh://github.com/ilastik/ilastik