Merge pull request #29 from nkmittal4994/edit_subject

Teacher : account ,change password fully functional - Nikhil
Added the studies model
Merge pull request #30 from nkmittal4994/edit_subject

Add student from admin dashboard - Nikhil
Update studies table on addition of a student
Added the form to select subjects for 7 and 8 semester
Checkbox backend
Fixed issues with checkboxes along with confirmation message
Added files for total attendace options
Added checkboxes for total attendance
Added client side check for total classes in feed attendance
check for total classes