Project revamp part 2: Edit

Summary:
Taking a pass at revamping the edit pages in Projects. Specifically:

 - Remove EditMainController
 - Move actions from EditMain to Profile
 - Move properties from EditMain to Profile
 - Move timeline from EditMain to Profile
 - Move Open Tasks from Profile to sidenavicon
 - Add custom icons and colors to timeline

Feel free to bang on this a bit and give feedback, feels generally correct to me.

Test Plan: Edit everything I could on various projects. Check links, timelines, actions.

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D11421

src/applications/files/controller/PhabricatorFileComposeController.php

@@ -72,7 +72,7 @@ final class PhabricatorFileComposeController
         ));
 
       if ($project_phid) {
-        $edit_uri = '/project/edit/'.$project->getID().'/';
+        $edit_uri = '/project/profile/'.$project->getID().'/';
 
         $xactions = array();
         $xactions[] = id(new PhabricatorProjectTransaction())