Error on proxy resizable

[ecentinela]

Documentations says that the 'proxy' option is used to add a className to the proxy element. But always it is replaced by 'proxy' string.

The error code is this

			$.extend(o, {
				_aspectRatio: !!(o.aspectRatio),
				proxy: o.proxy || o.ghost || o.animate ? 'proxy' : null,
				knobHandles: o.knobHandles === true ? 'ui-resizable-knob-handle' : o.knobHandles
			});

The option is extended and replaced on this line

proxy: o.proxy || o.ghost || o.animate ? 'proxy' : null,

[brainless]

Replacing the line with:

proxy: o.proxy || o.ghost || o.animate || null,

seems to fix things on Firefox and IE (although I guess there was a good reason to use the method originally used, so perhaps this isn't the best way?)