Update to Unicode 5.2.0.

Update to Unicode 5.2.0.

* admin/unidata/UnicodeData.txt: Update.

* lisp/international/charprop.el:
* lisp/international/uni-bidi.el:
* lisp/international/uni-category.el:
* lisp/international/uni-combining.el:
* lisp/international/uni-comment.el:
* lisp/international/uni-decimal.el:
* lisp/international/uni-decomposition.e:
* lisp/international/uni-digit.el:
* lisp/international/uni-lowercase.el:
* lisp/international/uni-mirrored.el:
* lisp/international/uni-name.el:
* lisp/international/uni-numeric.el:
* lisp/international/uni-old-name.el:
* lisp/international/uni-titlecase.el:
* lisp/international/uni-uppercase.el:
  Regenerate.