Popover's content function called differently than docs state

Created by: bjohn465

The popover docs for the content option state, "If a function is given, it will be called with 1 argument, which is the element that the popover is attached to." However, the content function is called with the this object set to the attached element and no arguments.

Test case: http://jsbin.com/weqid/1/edit?html,js,output

This is probably a documentation issue, unless the function really is supposed to receive the element as an argument, in which case this line needs to be updated.