support outside collaborators

lib/githubFetcher.js

@@ -199,6 +199,7 @@ class GitHubFetcher {
       team: { tokenTraits: ['admin'] },
       members: { tokenTraits: ['admin'] },
       collaborators: { tokenTraits: ['push'] },
+      outside_collaborators: { tokenTraits: ['push'], Accept: 'application/vnd.github.korra-preview' },
       reactions: { headers: { Accept: 'application/vnd.github.squirrel-girl-preview' } },
       clones: { tokenTraits: ['admin'], headers: { Accept: 'application/vnd.github.spiderman-preview' } },
       referrers: { tokenTraits: ['admin'], headers: { Accept: 'application/vnd.github.spiderman-preview' } },

lib/processor.js

@@ -134,7 +134,8 @@ class Processor {
 
     this._addRoot(request, 'owner', 'user');
     this._addRelation(request, 'teams', 'team');
-    this._addRelation(request, 'collaborators', 'user', document.collaborators_url.replace('{/collaborator}', ''));
+    // this._addRelation(request, 'collaborators', 'user', document.collaborators_url.replace('{/collaborator}', ''));
+    this._addRelation(request, 'outside_collaborators', 'user', document.collaborators_url.replace('{/collaborator}', '?affiliation=outside'));
     this._addRelation(request, 'contributors', 'user');
     this._addRelation(request, 'subscribers', 'user');
     this._addCollection(request, 'issues', 'issue', document.issues_url.replace('{/number}', ''));