Merge branch 'duggasys-master' into duggasys-feature-studentview
Move things into more appropriate directories
add title and button-style
change url on access-button
make getstudents into ajax call.

Added getstudent_ajax.php to ajax folder, and added two javascript
functions in students.php (getStudents() and appendStudents()).
some styling changes
Fix access restrictions on adding students

Also, fix an SQL injection vuln.
Merge remote-tracking branch 'origin/duggasys-feature-studentview' into duggasys-CourseMenu