changed classpath for ij3d development
copyright notice added and cleanups
deleted unused and outcommented options
Merge branch 'ij3d' of https://github.com/dietzc/knip-imagej3dviewer into ij3d
fixed bug with 2d images
adapted to the ij3d plugin
Merge branch 'ij3d'

Conflicts:
	org.knime.knip.ij3dviewer.base/src/org/knime/knip/ij3dviewer/IJ3DTableCellView.java
resolved using ij3d version of the file