Update add_subject_layout.php
Update admin.php
Update subject_m.php
Update subject_m.php

deleted multiple entries for rules
Completed the edit subject function as well did changes in the layout of the entire admin panel
Update subject_m.php
Update subject_m.php

Working correctly when checked..entry added to database.
Merge pull request #26 from sarthakjain1994/master

Admin adds subject
Changes in the student layout
Merge branch 'master' of https://github.com/zishanAhmad/attendance
Added subject abbreviation