Maintenance and a little bit more content

- added favicon
- changes to the gulp sprite module
- changes to gulp linting
- fixed javascript scroll function and added setup function content
- fixed javascript indentation
- new error pages
- changed css for link colors
- fixed css sprites

source/pages/demo/os.njk

@@ -143,7 +143,6 @@
 // Page specific
 // ------------------------------------------------------------------------------
 $( document ).ready(function() {
-  console.log('HIPPIE');
 });
 </script>
 {% endblock %}