3.0.0

• page scrolling behind an open dialog box is now disabled by default
• added margin property to prevent the dialog box from touching the viewport's limits when stretched 100% horizontally and/or vertically
• added max_width property which, together with the existing max_height property, can now be specified as percentage
• added the default_value property to be used for prompt type dialog boxes
• width and height properties can now be specified as percentages, too
• custom_class is now also added to the overlay, not just to the dialog box
• the word center can also be used when specifying vertical position (alongside middle)
• when using iFrames, the width and height is now automatically computed to fit those of the dialog box; additionally, now a spinner is also shown while the iFrame content is loading
• the library now automatically does backdrop management when opening multiple modal dialog boxes
• dropped IE6 support
• fixed bug where the positioning of the dialog box was incorrect it had borders
• removed the backdrop_container property
• minor tweaks to all the templates