BUG: Add missing OpenJPEG LICENSE file.

Taken from the r2348 checkout of http://openjpeg.googlecode.com/svn/trunk/.

Move README-ITK.txt to a location consistent with other modules.  Remove
old broken link to the license location.

Change-Id: Ib093effe9ed7138ac98d70cf20e4cf97253160b9
BUG: Add missing PNG license.

From http://www.libpng.org/pub/png/src/libpng-LICENSE.txt

Change-Id: Iab92ec30d9fc7788ad479e12aadb2b71a5fbea46
BUG: Examples should not have namespace KWStyle check.

The examples do not have classes that should live in the "itk" namespace, and
the namespace check should be ignored by KWStyle.  Exception added to
ITKOverwrite.txt.

Change-Id: If58dd49538516acab30a9196d324a194672ea71d
Merge topic 'licenses'

4e31d46 BUG: Add missing PNG license.
5e094ec BUG: Add missing OpenJPEG LICENSE file.
Merge topic 'ExampleKWStyleNamespace'

c345656 BUG: Examples should not have namespace KWStyle check.