made five models
added relationships to models
added current and past scope lambdas to course model
finished writing model associations
working on methods in user model, waiting for database so i can test them.
added role lambda, not sure if it will work until database and seeds are up and running
trying other methods to do the role scopes
editing role scopes
added has_many student_assignments
working on scopes for students and teachers
Merge pull request #2 from abigezunt/models

Working on models methods