Implements correct ordering of semesters
Implements Schedule using SemesterEncode and SemesterDecode functions
Changes size of schedulecollection for iphone
Renames add semester to change semester
Reimplements changeSemester controller to prepare for adding 'removeSemester' functionality
Adds presentation of semesters that can be removed
Implements delete method for sections
implements deletion confirmation for deleting semesters
Changes names of options icons
Removes graduationyear property from schedule
Calls delegate when semesters have changed
Changes semester wrapper to be NSData
Adds facebook login
Creates UserInfoController
Shows info user controller
Changes keyboards for gradYear to numberPad
fixes setting of graduationYear for user
Sets up facebook id for user