MDL-43089 Fix badly name-spaced moodle_url.

I searched and checked them all.
MDL-43089, adding css for last add-menu
MDL-43089 fix the repaginate wording.
MDL-43089, change and add more steps to repaginate.feature
MDL-43089 Rename rest.php to edit-rest.php
MDL-43089 Rename Behat features for clarity and fix whitespace.