user is logged in once they sign up
updated userRead and userclass to implement profile backend
userUpdate implemented (yet to test)
Merge remote-tracking branch 'origin/master' into sham_branch
todoCreate implemented (yet to test)

Deleted session files
edited typos in todoCreate
todoDelete implemented (yet to test)
realigned parameter checks (todoDelete.php)
implemented todoUpdate.php (yet to test)
Missing '{' in todoDelete.php fixed
todoDecrement and todoIncrement implemented
edited inc and dec file intro comment
implemented todoUpdateRate.php (yet to test)
Merge remote-tracking branch 'origin/master' into rahul_branch