Clean up URIs in Phame
Summary: Normalize "getViewURI" and "getLiveURI" for PhameBlog and PhamePost. Use pretty URIs in PhamePost
Test Plan: View Recent, View posts, edit post, new post, move post, view live.
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin
Differential Revision: https://secure.phabricator.com/D14713