OAuth Server -- add a doc and link to it in a few places

Summary: add a big ole HELP tab and make "scope" link to the specific
sub-section about scope

Test Plan:
read my doc a few times, it basically english
verified links looked correct and should work right once this is all in
production

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, epriestley

Maniphest Tasks: T910

Differential Revision: https://secure.phabricator.com/D1752

src/applications/oauthserver/controller/clientauthorization/list/PhabricatorOAuthClientAuthorizationListController.php

@@ -54,6 +54,9 @@ extends PhabricatorOAuthClientAuthorizationBaseController {
                                       $current_user);
       $updated = phabricator_datetime($authorization->getDateModified(),
         $current_user);
+      $scope_doc_href = PhabricatorEnv::getDoclink(
+        'article/Using_the_Phabricator_OAuth_Server.html#scopes'
+      );
       $row = array(
         phutil_render_tag(
           'a',
@@ -65,7 +68,7 @@ extends PhabricatorOAuthClientAuthorizationBaseController {
         phutil_render_tag(
           'a',
           array(
-            'href' => 'TODO - link to scope about',
+            'href' => $scope_doc_href,
           ),
           $authorization->getScopeString()
         ),

src/applications/oauthserver/controller/clientauthorization/list/__init__.php

@@ -9,6 +9,7 @@
 phutil_require_module('phabricator', 'applications/oauthserver/controller/clientauthorization/base');
 phutil_require_module('phabricator', 'applications/oauthserver/storage/client');
 phutil_require_module('phabricator', 'applications/oauthserver/storage/clientauthorization');
+phutil_require_module('phabricator', 'infrastructure/env');
 phutil_require_module('phabricator', 'view/control/table');
 phutil_require_module('phabricator', 'view/form/error');
 phutil_require_module('phabricator', 'view/layout/panel');