handle the case of no smoothing
fixes #671
fixes #672
setup_mac.py: Don't include sklearn in site-packages.zip due to import errors in sklearn.utils.sparsetools
PixelClassification: Forbid the user to change the features or input files while live update is active.
Fixes #662
docs: Removed _build directory from git tree.
tests: Fixed headless test.  Now works after recent changes to OpPixelClassification
tests: PixelClassification: Fixed serializer test.
Travis: Install sklearn (for counting tests)
tests: Always check main thread name instead of thread position in enumerate()
tests: Counting: Skip gui test on travis-ci.
travis: Install sklearn with pip.
should fix rubber band size on windows and mac
fixes #693 and #692
adding scipy to travis
Revert "adding scipy to travis"

Unbreaking the travis build while contemplating further decisions.
This reverts commit 704c61424acec9c01698d896d1361aee3685f4d5.
LayerViewerGui: Use new graph setup completion signal to defer layer setup until the graph is totally finished with setup.
logging: Added a config entry for feature selection applet.
utility: Removed timer module, which has been relocated to lazyflow.
save project save time to project file