Merge feature/election-list-core into develop
Add cocoapods and AFNetworking 2.0 dep
Load elections from static URL
Add settings plist/config url
Update elections.json to match Google Civic Info electionQuery response
Add option to load data from Civic API
Add TODOs
Implement election.isActive for string dates
Add test stub files and election model tests
Merge pull request #4 from CloudNiner/feature/election-list-network

Pull election list from configurable URL