Acceptance/integration tests

[jimmay5469]

Figure out how to write acceptance tests with the Firebase adapter and then get the main workflows acceptance tested so I can stop manually regression testing everything. Once we figure this out then we should begin requiring acceptance tests with any new functionality.

Workflows that need tested:

• signin
• signout
• seeing a list of topics with already presented topics filtered out
• not being able to add a topic if signed out
• adding a topic
• "NEW!" on new topics (added since the last meetup)
• not being able to upvote if signed out
• upvoting a topic
• removing an upvote
• not being able to schedule a talk if signed out
• not being able to schedule a talk if it has already been scheduled
• scheduling a talk on a meetup day for today
• scheduling a talk on a meetup day for next meetup
• scheduling a talk on a non-meetup day for next meetup
• unscheduling a talk you have scheduled