Flagging website 1.2

• Error handlers added.
• Retry support added.
• Updated db schema to handle "live website options." Admin panel interface added that includes markdown editor support.
• Docs for migrating the db added.
• Various refactors, most importantly app.py got a complete makeover.
• Added new test case.
• Removed unnecessary warnings from tests.

Flagging website 1.1

Merge branch 'master' of https://github.com/codeforboston/flagging

Flagging website 1.0

First fleshed out version of our app