COMP: Remove old java examples.

These are not tested.

This addresses doxygen warnings.

Change-Id: I7a83eeb45cfa14caca5d7fc8fbae4d2219c25f7b
COMP: Remove duplicate DiffusionTensor3DReconstruction example reference.

Addresses:

Modules/Filtering/DiffusionTensorImage/include/itkDiffusionTensor3DReconstructionImageFilter.h:111:
warning: Example
Examples/Filtering/DiffusionTensor3DReconstructionImageFilter.cxx was already
documented. Ignoring documentation found here.

Change-Id: I9e3d84bf0b41025599930609a6fac20b69995e61
DOC: Book 2 Chapter 3 edits (part 1)

Change-Id: Id821427f2d7b99cce462b8fe8c2a1e0d321c814a
Merge topic 'book-2-chapter-3-edits'

c5d9ff6f DOC: Book 2 Chapter 3 edits (part 1)
Merge topic 'doxygen-warnings'

8a0134de COMP: Remove duplicate DiffusionTensor3DReconstruction example reference.
a7d3a899 COMP: Remove old java examples.