Make sure the usage values returned from disaggregation are not NoneType
Created by: cschloer
Disaggregation code can return NoneType values if the usage is 0. The endpoints fail to save disaggregated data to the database if this happens.
Go to the pivotal task to see an example bill that can be uploaded before the fix and after the fix to see the change https://www.pivotaltracker.com/story/show/147149993
Also removed address from the model of account and scrape because it is no longer used.