Removed the empty QWidget which covered the z-spinbox
extend transfer labels to return ambiguous cases
Merge pull request #284 from christophdecker/fix_x_spinbox

Removed the empty QWidget which covered the z-spinbox (fixes #115)
correct return value in transferLabels function
fixed more backslash issues in filenames
Merge pull request #285 from ukoethe/master

backslash in filenames fixes
reset the need_to_transfer flag
removed duplicates of viewerControls by creation of viewerControl custom widget
Set default channel to 0
more object workflow channel fixes
feature plugins consider image shape when reporting available features
print object details works again
removed deleteButton and added SaveButton in viewerControls
spelling
deserialize in correct order. closes #276
Fixes the xcb/X11-error of the EventRecorder script playback on Ubuntu
remove precomputed_predictions and prediction_gui

These output slots instantiated a cache, which was not used except
for the autocontext workflow. If, in the future, a cache like this
is needed again, it should not be added to OpPixelClassification
but rather to the downstream operator.
do not be surprised if new plugins are available
dynamically remove features that failed
fix #203 gui changes to batchIO