Fix I edit profile steps
Apply fixed header in css
Remove transitions from menus for behat
Be more specific about some "I follow" steps
Navigation path changes
"Current course" node removed from nav tree
Adapt tests because there are no default blocks
Force some space between action menu items
This change prevents from registering and/or saving the profile of a
user with the whitespace instead of the required name.
Additionally, there is accessibility improvement for better error labels
in case of missing values (copied over from signup_form).
M Kassaei