User stories for review.

@hughhn @rcarino @josemontesdeoca @jaredzimmerman 

Proposed user stories for KIPP.  Please review.  Also, additional clarifying questions here:
https://docs.google.com/document/d/1hFFxBRcWRuEXc62et_yvSRwbhLXH4CCz7YCU4DHXhvI/edit

Another point Jennie brought up is to have a list of students who should be staying behind after school or needing to attend Saturday classes. This information would be something useful to have on a student profile (to know what their extra-tutorial schedule would be for the week).