Dispatcher
    This tool is the implementation of Bubbling Library Dispatcher Plugin
    for YUI 3. Dispatcher satisfies a very common use-case: 
    As a developer, I want to execute scripts tags from an Ajax HTML response.
    More info at http://yuilibrary.com/gallery/show/dispatcher

HEAD
    * Tested on YUI 3.3.0
    * Fixing the inline script tag execution on FF4:
      http://yuilibrary.com/forum/viewtopic.php?f=134&t=7529

2011.03.02-20-58
    * Internal refactor to provide access to some of the process during the 
      dispatcher phase through protected methods: _executeScript, _getScript, 
      _setContent, _purgeContent. More info about this here:
      http://yuilibrary.com/forum/viewtopic.php?f=134&t=6968&p=21990#p21990
    * Introducing a new event called "error" to provide feedback on failure within
      the fetch process or the external script injection routine.
    * Making dispatcher smaller (using "instance" instead of "this" for better compression)

2010.09.15-18-40
    * Tested on YUI 3.2.0
    * Adding support for ioConfig attribute to control the io requests from 
      within the dispatcher, just like yui3 core datasource module does it.

2010.09.01-19-12
    * Tested on YUI 3.1.1
    * Bugfix to support html/head/body tags as part of the content

2010.02.17-20
    * Tested on YUI 3.0.0
    * Initial release