Re #1206 - multilang: My Europeana, Language Settings

* added a universal timer.js script to handle all callbacks attributed to a specific setInterval
* re-alphabetized pom-minify.xml’s js scripts
* added eu.europeana.vars.user to the myeuropeana/index page
* began to structure the myeuropeana/index page so that it can handle many user settings panels
* started work on login and settings panel display
* added increased limit to translate search keywords when user is logged in
* added a guid method to js.utils