3.1.0

* IMPORTANT: Changed default prefix to "yui3-" to avoid collisions with yui2 code,
  which uses "yui-". Bundled CSS has also been updated.

* getClassName can now be invoked with a boolean skipPrefix argument set to true to
  avoid adding the default prefix when creating the class name.

* Whitespace is no longer replaced in the generated class name.

3.0.0

* No change

YUI 3.0.0 beta 1

* Now uses Y.cached
* All white space is stripped from incoming arguments

version 3.0.0 PR2

* Initial 3.0 revision