Automatically follow voter guides for groups/people you follow in Twitter

[DaleMcGrew]

Part 1
Upon sign in with Twitter, cache locally (and update) all Twitter handles being followed, using the voter's access key.

Part 2
In the WebApp interface, after sign in, we will be asking the voter if they would like to auto-follow the voter guides of orgs/people they are already following via Twitter. If they say yes, we want to cycle through the cache of the Twitter handles they are following, and check to see if a voter guide exists in We Vote for that Twitter handle. If it does, follow that group/person.
Note: we need to track if a voter has already ignored or stopped following a group, so we don't RE-follow that group.

[DaleMcGrew]

This is now working! Thank you @jainanisha90!