Improvements in javascript device detection
Core-JS: polyfills for IE9 and below
getURlcontent utility for Core-JS
Feature: The draggable debug panel now save the old positions. Is the expected "Quita del medio que no veo!" change.
Merge branch 'master' into devel

Conflicts:
	instances/common/config/js.config.php
	libs/Core-js/classes/modals.js
	libs/Core-js/core/init.js
	libs/Core-js/libs/modernizr/polyfills/cssfx.js
	libs/Core-js/libs/modernizr/polyfills/cssfx.min.js