Cunidecode

* Corrected ChangeLog.

* Fixed transliteration of Chinese character "Yi". (thanks to Yao Zuo)
* Transliterate Euro sign as "EUR". (thanks to Dave Smith)

* Revert transliteration for Latin characters with umlauts back
to language-neutral, unaccented characters.
* Added transliterations for circled numbers, letters and ordinals.
* Minor fixes to rarely used punctuation characters.

* Use German transliteration for Latin characters with umlauts.
(thanks to Geoffrey Teale)
* Fixed transliteration for several rarely used punctuation
characters.
* Add transliteration for trademark and similar signs. (thanks to
Ovanes Markaryan)

* Tests now pass on Python 2.7.
* Make argument type warning refer to unidecode()'s caller.

* Issue a warning on Python 2.x if an object that is not an instance of
unicode class is passed to unidecode().
* Fixed unit tests for Python 2.5.