Added campus function and call number function
Added course_id and course_type functions
ends_after implemented, query must be done in military format (i.e. 3:30 PM is 1530)
Added ends_before (military time also)
Added not_full (can take true or false as a query YTFD)
Added professor function. Query consists of last name
Added starts_before and starts_after. Format same as ends_before and ends_after (military)
students_less_than function implemented, refers to the number of students enrolled
Added term function, has to be springXXXX or fallXXXX, where XXXX is the year
Added school function
Added correction to term function
Added title function
Added meets_on function (which days it meets on). For this, days need to be in correct order (i.e. if a class meets Wednesday and Monday, searching WM would not work, only MW would work)