Implement new 401, 404, 502 and 503 pages.
Merge remote-tracking branch 'origin/newframework' into errorPages
Improved skinning for error pages, renamed redirect functions, administrative UI redirects to 401 if no access granted, bring noscript page up to date with newframework branch
Better URLs for error pages in nginx configuration
Redirect admin UI to 'accessdenied' instead of '401'
Merge origin/newframework and fix conflicts
Merge branch 'errorPages' of git://github.com/bp323/3akai-ux into errorPages
Follow-up fixes