Separation of Main.py **IMPORTANT**

This is important everyone. Main.py has been separated into separate
python files:
The DomainModel.py file solely holds our Objects and nothing else. There
are no handlers in this file. When referencing one of these objects you
must specify DomainModel.Recipe for example.

RecipeHandlers.py file handles all url's that go /recipes/.*
This includes recipe upload handler, recipe display handler, and comment
submission handler.

MainHandler.py file handles the main pages, so recipe submission page,
home page, etc.