The form is now prepopulated with previous entries for the specific school.
Number of entries is now restricted
Added a "Remove" button on the invigilators page
 - the invigilator is deleted from the record
Added 'delete student' button for students.html. (and associated functionality)
Added 'save form' nbutton on the newstudents.html form. (and assoc. functionality)
[FIX] Views students&invigilators.html are filtered by school
[UPDATE] Added pair logic ("removing one will remove both")
Merge pull request #9 from frank-retief/201312-W12

201312 w12