Added tests and fixed Point3D.  Fixed writing out of a list of columns that is all Default Items.  Fixed Ncube Equals() of Array items (needed for byte[]).  Added in support for writing out.
Updated test to add coverage to Columns
Added in support for byte[] conversion and supoprt for all default columns.  Updated some tests for better coverage.
Remove test System.out.println()
Merge pull request #10 from kpartlow/master

Updated for Point3d, Fixed Some Tests, Added Array equals comparison support