Updating hours.json

Adds entries for hours.json for all possible library locations
(including “Information Intersection at Stata Center”, which I’m not
sure is needed). Also sets the hard-coded test date to be the first day
of the Unix epoch, 1/1/1970.
Adds real values to hours.json

This adds real values to hours.json through Sunday, June 8. I’ve also
re-run grunt on core.js, which regenerated production.js and
production.min.js.

There are some entries in hours.json that may need to be adjusted:
AKDC doesn’t have hours in the hours spreadsheet
Informtion Intersection doesn’t seem to be needed at all