maxWidth parameter doesn't work

[peteralewis]

The maxWidth parameter incorrectly sets the CSS value maxWidth, which is an invalid property.

maxWidth : max-width of the tooltip in px or % (for % add the value in quotes ex.'50%'). For usage you need to set width to '', false or null

Line 195 of the JS sets the CSS from the passed or default parameter:
maxWidth: obj.settings.maxWidth

But it needs to be max-width CSS property, so therefore doesn't currently work.