R1:f8c541b8192b

Refactor SlowvoteList controller

Summary: No change in functionality, just splitting this method up a bit
Test Plan: Loaded list and looked at all three views.
Reviewed By: jungejason
Reviewers: jungejason, codeblock, aran, tuomaspelkonen
CC: aran, jungejason
Differential Revision: 618