Unify profile and avatar images, move profile editing into settings

Summary: See T266. Combine these interfaces into one and move it to settings.

Test Plan: Edited my profile and account.

Reviewers: codeblock, tcook, jungejason, tuomaspelkonen, aran

CC:

Differential Revision: 722

src/aphront/default/configuration/AphrontDefaultApplicationConfiguration.php

@@ -72,8 +72,6 @@ class AphrontDefaultApplicationConfiguration
       '/people/' => array(
         '$' => 'PhabricatorPeopleListController',
         'logs/$' => 'PhabricatorPeopleLogsController',
-        'edit/(?:(?P<id>\d+)/(?:(?P<view>\w+)/)?)?$'
-          => 'PhabricatorPeopleEditController',
       ),
       '/p/(?P<username>\w+)/(?:(?P<page>\w+)/)?$'
         => 'PhabricatorPeopleProfileController',