Base code for section selection view controller. Added model classes for Section and Courses
Finished formatting the calendar
Better color in schedule view
base code for enrolled courses table
support for expanding/collapsing enrolled courses table
Changed sliding control to build items from bottom up (looks better)
Minor redlines for enrolled courses table
Added a set data structure
Made the model classes hashable
Model classes for section enrollment
Changed model class for section enrollment
changed the way enrollment model works...again
Adding code for saving course selection on the enrolled courses table
Support for sending enrollment changes up the parent chain via delegate
Support for showing updated section enrollments in schedule view
displaying enrollment on schedule
Full syncing between the two views for section selection.
Added color to course model
Handled the case where there is only one section of a type
Fixed layout margin bug for sliding selection control