* 0.2.2
	* EnumTVU works for classes that subclass both Enum and str/unicode
* 0.2.1
	* EnumTVU now accepts unicode in Python-2.7 as variant name
* 0.2
	* README updated
	* (bugfix) nullable().error() is now a proper overide of parent's method
	* README included in distributed package
	* __version__ attribute for library
	* use repr() to show values inside exceptions
	* Iterable -> iterable(); now iterable accepts optional elem validator

* 0.1
	initial release
