ready() callbacks fire inline after load

[SidneySM]

When an event listener is installed, the expectation is that the callback will fire sometime after the currently-executing code.

Because of this, some developers may have setup code after a call to .ready().

If this all happens before the ready event, it's not a problem, but if the ready event has already fired, the callback happens immediately (see ​here in 1.3.2) and code written this way will break.

It makes sense to do

setTimeout(function(){ this.call( document, jQuery) }, 0);

or similar so that the behavior of .ready() is consistent.

[SidneySM]

Typo. Code block should be:

setTimeout( function(){ fn.call( document, jQuery ) }, 0 );

[snover]

Duplicate of #7366.