Reverted changes in LabelingComposeOperator
Merge branch 'master' of https://github.com/knime-ip/knip

Conflicts:
	org.knime.knip.base/src/org/knime/knip/base/data/aggregation/LabelingComposeOperator.java
basic version needs test with different os
converte everything to / before saving
Merge branch 'workflow_relativ_img_paths'
Merge branch 'master'