R1:9c94bf1bea3f

Improve Phame live blogs/posts

Summary: Make "View Live" work on Posts.

Test Plan: Clicked "View Live" on live/not-live posts/blogs.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T1373

Differential Revision: https://secure.phabricator.com/D3703