Adding feature to give user alert messages on user input
Adding feature to alert user by alert messages when adding teacher
Adding feature to alert user by alert messages when adding admin
Adding javascript file to display alerts
Adding feature to alert user by alert messages when adding books
Adding feature to alert user by alert messages when adding category
Adding feature to alert user by alert messages when clearing due
Modifying the issue procedure of book
Adding alerts when book issued
Adding functionality which prompt admin to enter roll number when issuing book
Adding feature to alert user by alert messages when returning book
merging branch homepage into master