Release version 2.0.0-beta2.1

This fixes the scifio dependency at 4.4-imagej-2.0.0-beta2.1,
and fixes the ImageJ1 dependency at 1.46o.

Release version 2.0.0-beta2

This fixes the scifio dependencies at 4.4-imagej-2.0.0-beta1, and fixes
the ImageJ1 dependency at 1.46k.

Release version 2.0.0-beta1

This fixes the scifio dependencies at 4.4-imagej-2.0.0-beta1,
and fixes the ImageJ1 dependency at 1.46j.