Merge pull request #17 from jkuk/master

adding Richy's data, instructor, and TAF classes, and changed package in...
Created Day and Time classes, changed hashCode of Course class
Changed hashCode and equals methods
minor style change......too many spaces
Changed format of Time class, entered validations and string format
forgot to get rid of sec format
added a new class for managing time schedules, updated the instructor, taf, and modified the file selector window