"Some polyfills" (see https://github.com/Edoardohorse/Polyfills)

- startsWith and endsWith: declared into String.prototype, they are such clever methods and
							now those coulbe be used in any browser you want (IE 9+ included);
							
- newEl(  ): that is a function that allows to create HTMLElements and initialize them with: the id, the CSS classes
			and the HTML attributes  ( e.g "data-role" or "title" )