added and overview calculation that saves out to the mongodb. Currently only calculating counts
Merge branch 'dev' of https://github.com/votinginfoproject/Metis into dev
Merge branch 'dev' of https://github.com/votinginfoproject/Metis into dev
Moved the overview calculations into it's own folder, also have it calculating and aggregating all the fields for every ballot and its children in the mongo DB for a given feed.
refactored the overview processor now fully calculates the total fields and the amount of ballots and contests in a given feed.