Change font for belltimes to Roboto Light.
Extend offline support

Add offline support for IE and some older browsers (see
http://www.jstorage.info/ for more info)
Add public holiday/school holiday support

* It doesn't show the second countdown if the gap is >4 days.
Revert "Add public holiday/school holiday support"

This reverts commit 6d1ff662f19a0c45f7560ca79195cb83ceec9fdb.
Remove some debugging

Whoops about the revert.
Derp

Doesn't it suck when you think of things 30 seconds *after* you commit?
Merge remote-tracking branch 'origin/master' into gh-pages