Make a more advanced data structure for schedules

[hathix]

E.g. "MW 1000-1059" should become something like:

Monday: {start:1000, end:1059},
Tuesday: {},
Wednesday: {start:1000, end:1059},
Thursday: {},
Friday: {}

Oh, also convert times to military time (i think they already are)

[hathix]

We had some good code to pull this out earlier. The hardest part is extracting the pieces with a regex.