Adds single integration test for viewing only current_user's appointments.
Changes implementation of Appointment.upcoming_grouped_by_date to only sort a given user's appointments
Modifies appointment factory to only create future events.
Adds current_user to actions within the dashboard and appointments controllers (index for both, create for appointments)
fixes merge conflicts
Adds implementation of associating contacts (i.e. students) with an appointment.
Merge pull request #27 from sea-lions-2014/experiment

Experiment
Update db schema
Merge with master branch
Modify dashboard controller index to group appointments by date
Move rails_12factor gem into production group
Fix appointment controller tests
Merge pull request #28 from sea-lions-2014/mh-appointment-authentication

Appointments w/Students & only view your own appointments