Update pear-Numbers_Words from 0.14.0 to 0.16.1.

0.16.1

* Clean up package definition and tests;
* Better cast/sanitation of non-integer values;
* Fixed bug #16019 (incorrect trimming of vowels in the Italian extension).

0.16.0

* Added numerous language unit tests (Bulgarian, English 100, English GB,
  English US, French, French Belgium, German, Italian, Portuguese Brazilian);
* Swap all tests to PHPUnit 3;
* Bugs fixed:
  - #10744 wrong getLocales() Docblock;
  - #14988 bogus non-int parsing;
  - #14667 bad trascription for 101 numbers and 102 thousands bug;
  - incorrect values for 80 and 81 in French Belgium;
  - #15260 uninitialized string offset in Brazilian Portuguese.

0.15.0

* New file for Dutch language (Thanks to WHAM van Dinter);
* package.xml updated to version 2.0;
* Bugs fixed:
  - #5618 locale name (and file name) for Estonian is changed from ee to et;
  - #6654 bug in Russian translation;
* New feature added:
  - #7339 new Numbers_Words::getLocales() method is available (Thanks to
    Bertrand Gugger).

(taca)