jquery deprecation warnings

[sronsiek]

JQuery migration warnings persistently pollute the console & are quite annoying.

Easy one line fix @ line 174 of jquery.dirtyforms.js:

    // JQMIGRATE: jQuery.expr[':'] is deprecated; use jQuery.expr.pseudos
    // $.extend($.expr[":"], {
    $.extend($.expr.pseudos[":"], {

This removes the warnings - functionality not tested.

[sronsiek]

Correction - it seems the correct replacement is in fact:

    // JQMIGRATE: jQuery.expr[':'] is deprecated; use jQuery.expr.pseudos
    // $.extend($.expr[":"], {
    $.extend($.expr.pseudos, {