New "enableLinks" option for description widget

[silvereyes333]

Three possible values allowed:

• nil (default): links are disabled
• true: links clicks will call ZO_LinkHandler_OnLinkClicked(linktext, button)
• function(labelControl, linkData, linkText, button, ctrl, alt, shift, command) end: the custom function passed will be called upon link click.

[silvereyes333]

I think you might be confusing the descriptionData table with the desc control instance. The implication that self refers to desc is accurate, because desc is the control.

That said, there's no real reason to be creating a separate handler function for every unique instance of the description widget. I also don't need need access to any of the local variables in the surrounding method, so there's no reason to use an anonymous method and incur the overhead of a closure. I moved the handler to a local function instead.