MDL-42926 Bootstrap base: Remove 6px spacing between form elements

This was accidentally copied from the css for base. It is only visible when
the form fields are displayed with the label above the field. (less than 1200px).
Merge branch 'MDL-42926-master' of git://github.com/damyon/moodle
Moodle release 2.6
weekly back-to-dev release 2.7dev
Iteration 1: course page weeks renderer as quiz edit renderer

Just implement the course edit view as the edit quiz view. Will later refactor to reflect quiz
added rest.php to quiz
changed page type and layout
moving code to quiz folder