linux_client_choose_background - no longer uses symlinks since they do not play well in samba4.
generate_navbar_admin - no longer shows classroom management section as it is currently not in use.
generate_navbar_tech - classroom management removed from there as well!
exam_accounts_create_fm.cgi - fixed tool tip.
change_password_fm.cgi - tooltip change for special characters.
show_user_info - modified for use with samba4.
modify_groups.cgi - now properly checks that the chosen group exists.