* international/README: New file.

* international/README: New file.

* international/charprop.el:
* international/uni-bidi.el:
* international/uni-category.el:
* international/uni-combining.el:
* international/uni-comment.el:
* international/uni-decimal.el:
* international/uni-decomposition.el:
* international/uni-digit.el:
* international/uni-lowercase.el:
* international/uni-mirrored.el:
* international/uni-name.el:
* international/uni-numeric.el:
* international/uni-old-name.el:
* international/uni-titlecase.el:
* international/uni-uppercase.el: Add copyright notice (Bug#3428).