Merge pull request #80 from kraftery/kieran2

a couple of small fixes
pulling the urls for the pdf to the bus schedules because I'm not sure when dots is going to update the url for this semester's final. better safe than sorry
Merge pull request #81 from kraftery/bori

pulling the urls for the pdf to the bus schedules because I'm not sure w...
fixed the coupon view controller so that it buffers while downloading the coupon image
Merge pull request #82 from kraftery/bori

fixed the coupon view controller so that it buffers while downloading th...
updated the urls
Merge pull request #83 from kraftery/bori

updated the urls
hopefully fixed nav
some small fixes to views