Removed option to create one further course after creating a course.

It turned out that teachers created a new course, used a general template and did not take a look into the newly created course, but directly moved on to create a second course.
To make teachers aware that a there is some work to do in a newly created course, we deleted the option to jump to start a new course request after one course is created. Thus teachers who follow the process finally see the course page.
Renaming of options when choosing between empty course, template restore and restore from existing course
Reorganized restore alternatives
newly created user (after course request for users that are not in the system) was not able to login.

Nevertheless, users still have to be confirmed within other plugins.
Bug: Confirmation request for tutors:
Teachers that were not logged in when confirming a tutors course creation request were not forwarded to the correct page due to lost params during login process.