improve calendar status editing

Summary: make it so a given user can click to edit status from calendar view. also fix bug so when editing status existing "type" is selected

Test Plan: edited status from calendar view and observed "sporadic" status sticky

Reviewers: epriestley, chad

Reviewed By: chad

CC: aran, Korvin

Maniphest Tasks: T2060, T2061

Differential Revision: https://secure.phabricator.com/D3957