Summary: Simplified header, added Workboard button and icon, moved Maniphest actions to "Open Tasks" Object Box. Reduced actions by 3.
Test Plan: Test a number of project pages, looks better, cleaner.
Reviewers: epriestley, btrahan
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Differential Revision: https://secure.phabricator.com/D8219
