Use clone withDataAndEvents for form values

[Subtletree]

This PR is just to start a conversation about 2 features and possibly merge in the future.

It does 2 things:

1. Exports printThis as an AMD module:

 ;(function(factory) {
    'use strict';
    if (typeof define === 'function' && define.amd) {
        define(['jquery'], factory);
    } else if (jQuery && !jQuery.fn.printThis) {
        factory(jQuery);
    }
})(function($) {

2. Uses clone(true) to copy form values instead of manually iterating over inputs/selects.
   This should cover more scenarios. e.g In my situation some inputs don't have a name attribute so values weren't being copied.

This takes care of an item on the to do list 'Look at more efficient form field value persist'

I haven't tested every use case but am using this branch personally with success.

[oculus42]

.clone(true) doesn't persist <select> values. I tested against jQuery 1.9.x, 2.2.x, and 3.x.
We would need to keep at least the select logic. I haven't tested all form types, but select is likely the problem child.

JSFiddle testing .clone(true) support

[oculus42]

To be clear, I think this is a good idea; even if we have the special case for <select>, it's shrinks the library with the same result.

[Subtletree]

Oh good catch. Realised I was testing this with a select library that didn't actually use a select element.

I've submitted #120 with just the form value part of this PR.
Will open a separate one for the module part

[Subtletree]

PR #121 addresses exporting