Add style udpate function to raphael paper representing SVG element. Closes #65
Update README.md

Move R2D3 script include to head of document.
Ensure attachEvent listener is called in context of the raphael node.
Allow id attribute to be set/get on dom node. Closes #75
Add reduce shiv to Array.prototype
Cached created nodes to boost IE performance
Dont' cache title element
Fixes for IE7 (particularly not being able to modify prototypes for HTML elements/COM objects).
Merge pull request #78 from dtanabe/master

Support for styles/events in IE7/IE8
Refactored to use element object wrapper rather than extending Raphael