Silent mode for AutoThresholdAdjuster3D

In AutoThresholdAdjuster3D:
Added field value boolean silent, so segmentation and measurement can
be run without GUI output; and corresponding public method setSilent(z).
Added field value linkedArray for later recovery of results. Added
method getLinkedArray accordingly.
Added getTimepoint() method to Object4D
changed maxspotvoxels in ParamSetter to 900 based on measurement. Highly increased segmentation accuracy and computation time.
Started rewrite of AutoThresholdAdjuster3D ad AutoThrAdj3D_rewrite. This will be a subset of the original with only the AutoThreshold part, and the Particle Tracker and Trained Segmentation discarded. There will be separate classes for Particle Tracker and trained segmentation.
Added getParameters method
continued rewrite of AutThrAdj3D. Renamed method initializeThresholdLevel to estimateThreshold and moved its argument (px^2 area of Z-projected dot) to segmentation parameters. Other stuff to make it more readable for me.
Cleanup on unused variables.
Master of rewrite running stably in complete silent mode. Added dev branch.
graphical output methods. Implemented Z-projection in drawlinksGrayscale more directly.
Deleted some unused field values (mailny show.. bools). Started more concise rewrite of createZprojTimeSeries method.
Made z-Projection in method drawLinksGrayscale a oneliner and got rid of method createZprojTimeSeries
Outsourced DotLinker to new class. Stably running.
Removed all dotlinking methods from AutoThrAdj3D and also some unnecessary code, e. g. duplication of imp before ObjectCounter3D. Still an issue: ObjectCounter3D shows masked images.
Merge remote-tracking branch 'christoph/stable' into mergeChristoph
pom replaced with repository URL. Updated versions
new version, 2.1.0