Un-deprecate accidentally deprecated ImgPlusCellToPNGValueNode

Bump used version of trackmate to 3.7.4

This version contains a bugfix for tracks that are stationary over
several frames.

Remove reference to testingapplication feature

remove io2 plugin from knip feature

Implement init method. The KNIME converter framework calls this metho…

…d to init the dependencies of the factory.

Set version to 1.7.0

Set minium version for eclipse dependencies, to ensure installation
works on older KNIME versions.

Img/Labeling Cell: Use full path for hashkey calculation

clean-up node description of OrientationJ

bump version

ImgCropper: Respect minimum