OpPixelClassification: Replaced OpBlockedSparseLabelArray with OpBlockedLabelArray
tracking: now serializing the event vector to easily regenerate tracking result after deserialization
fixes some resulting colortable issues that fixing #640 caused
Fixes  #639
counting merge
added data export applet to chaingraph tracking
 adapt counting to 5e5b4d
Merge branch 'master' of github.com:ilastik/ilastik
fix check for main thread
added object counting tests
added simple test for dotting and brushing
implemented test for boxes
test for sigma value
refactoring
cleanup
cleanup
Counting: added delay in the requests, because lazyflow is too slow :-)
Boxes: workaround when a box is resized over the border of the image scene it requests a region of negative shape
Labeling: Updated labeling guis for recent changes to the LabelingGui base class.
Merge pull request #650 from lfiaschi/testsCounting

Tests counting