KNIME Image Processing 1.2.1

Minor bug-fix release:

Slice Loop Start: Column Selection is glitchy
SliceLoopStart: NPE on invalid input
ScifioImgSource: Avoid workaround to re-initialize the reader metadata if the same reader is used for each file
Slice Loop Start: Support Images / Labeling with different sizes, but same Iteration Intervals
Image Properties: Slow when only metadata is extracted
Gauss Convolution: Image Source is lost
Image Reader: Reading in only one series takes very long (CZI)
Slice Loop Start: Can't Loop over Labelings
Image Reader: Check file format fails on jpeg
Tess4J Parallel Execution
Rewrite Tess4J Integration

and some other, minor improvements.