Merge pull request #7 from chushao/backend

modified specialized time and redid time calculations to be cleaner
Merge pull request #8 from chushao/backend

Initial set up of doughnut
Changed default categories on dropdown for frontend
Merge branch 'master' of github.com:chushao/cse170webapp
Merge pull request #9 from chushao/backend

Updated donut to support date queries
updated doughnut routes
Merge branch 'master' into backend