Prefixes the css classes in use by the Simplicity Widgets.
Removes double div.ui-simplicity-pagination from
$.ui.simplicityPagination and simplicityPagination.css.
Adds 'ui-simplicity-pagination-' prefix to all of it's css classes.
Adds the ui-helper-clearfix class to the simplicityPagination widget by default.

https://github.com/t11e/simplicity/issues/31
https://github.com/t11e/simplicity/issues/38