Minor fixes to getBBox and additional functionality to sets. Now set could contain set.

Fixed plugins, gradients, r for rects in VML, arcs in scaling and a bit of animation. [not final release]

• added caching to some methods
• updated plugins
• added plugins for elements (Raphael.el.new_method = function…)
• fixed scale (still need to update animation)
• add some performance things to VML realisation

Fixes SVG capability detection bug in Safari 3.0.4 (http://github.com/DmitryBaranovskiy/raphael/issues/#issue/14)
Signed-off-by: Dmitry Baranovskiy <dmitry.baranovskiy@gmail.com>

• fixed font-weight and font-style
• Add noConflict method
• fix getBBox for text in Firefox
• fix fill-opacity in IE
• fix BBox for text in IE

Fixes to arc scale, text-anchor support, namespaces in plugins support, hyperlink support. Special thanks to Vincent Jauneau: http://vincentjauneau.com/raphael/

• IE8 support (thank you to William Edney)
• scientific notation support

• fixed events

• changed gradient syntax to "<angle>-<color>-[<color>[:<offset>]…]-<color>" in order to make it more readable

• changed gradient syntax to "<angle>/<color>/[<color>[:<offset>]…]/<color>" in order to pass rgb(r,g,b) as colors
• added fill-opacity support to gradients

• added new simpler syntax for gradients "<angle>,<color>,[<color>[:<offset>]…]<color>"
• added setSize method for resizing the canvas

Added extra check for function in event handlers

• returned rgb2hsb function
• added some copyrights to reference.html

Rolling back splitting. It happens that there no win: two requests is still longer then one big on the current file size.

Add reference to Atlassian in reference.html

• Fix for IE clipping ( thank you L. Alfonso)
• insertBefore, insertAfter fix (thank you netnichols)
• toString method added to pathArray

Signed-off-by: Dmitry Baranovskiy <dmitry.baranovskiy@gmail.com>

Changed insertBefore() and insertAfter() to have different implementations for VML and SVG (was broken in VML). Also changed these functions to return 'this' for chaining.
Signed-off-by: Dmitry Baranovskiy <dmitry.baranovskiy@gmail.com>