2.0.1

• renamed option grouped to more recognizable accordion
• changed default fx value to null for no effect used
• changed order of executing fx function and class assigning so it doesn't interfere with jQuery effects
• default value of extLinks.selector to empty string ''
• move class name option for active external links into classNames
• destroy function now actually works properly :) some optimizations were done to destroy method apart from making it work
• when destroy is called, aria attributes are removed as well
• isExpanded is not a method anymore
• bugfix of not binding event on control element if it is anchor