Fixes after testing blog,main,menu

drop down menus themed
documentation submenu removed
code segment formated
blog listing: summary made longer
blog post: image made full width (need to re upload them for better visuals)
logo changed from beta
http://staging.walkhub.net/user: FIXED
Using absolute URLs are not a good practice. Consider using `path_to_theme()` or `drupal_get_path('theme', 'walkhub_theme')`.