Header
Update Cuducos's URL
Fix menu when Facebook image isn't displayed
Footer
Flash messages styling
Add semantic colors for the header
Avoid non-semantic definitions
Avoid pixels definitions
Clean-up and use % for border-radius
New naming for profile link
Fix user menu pos for Safari
Fixes cuduco's link
Moves help translation to the top so all generic translations are together
Merge branch 'cuducos-header-n-footer'