Port the "Slowvote" application
Summary: Port slowvote. This has some style/layout roughness but gets us most of
the way there. I'll followup to fix some of the markup issues.
Test Plan: Created and voted in several different kinds of poll.
Reviewed By: codeblock
Reviewers: codeblock, tomo, jungejason, aran, tuomaspelkonen
Commenters: aran, jungejason
CC: aran, codeblock, jungejason, epriestley
Differential Revision: 613