Registers a function to be called when an element with
the given selector is inserted into the DOM. The function is called
with each matching element as a
jQuery object.
If you're not using jQuery, use up.compiler() instead, which calls
the compiler function with a native element.
Example
This jQuery compiler will insert the current time into a
<div class='current-time'></div>:
up.$compiler('.current-time', function($element) {
var now = new Date()
$element.text(now.toString())
})
