add js libs to about page
small update to items list page
user profile loading with jQuery

When javascript is enabled, preload the other profile pages
(activities, ...) async and use javascript to update the page
on click.
fix user modify page
enable link navigation

When javascript is enabled, a click on the already active
navigation link will bring the user to the permalink location.
override another unwanted style
some IE border radius fixes
use IE function to load CSS
user profile: color background