fix css column & animation fuckin opacity bug
fix some problem
fix safari price tag gone
[ychiaoli] Add models.js and view.js to the repo.
1. ProductModel & UserModel
Merge branch '1223keepgoing' of https://github.com/ychiaoli18/foodsafety into addriot
[ychiaoli] Add populate_test_data.py to populate the database with test product data
[ychiaoli] Serve website by test server
1. python foodsafety.py -> run test server
2. add riot.js dependency
[ychiaoli] Minor modify, change the server url in populate_test_data.py
[ychiaoli] minor modification on index.html, app.js and models.js