refine update algorithm for items Fix13
refine update algorithm for items Fix14
refine update algorithm for items Fix15
refine update algorithm for items Fix16
refine update algorithm for items Fix17
refine update algorithm for items Fix18
refine update algorithm for items Fix19
refine update algorithm for items Fix20
refine update algorithm for items Fix21
refine update algorithm for items Fix22
users.update redefined to allow adding item to array
login functionality
login auth test 1
login fix 2
updated login to return error with incorrect email
test 3
Merge branch 'master' of heroku.com:ctrl-f
auth_user change
test 4
test 5