Use manifest.json from references.tc.net instead of local apis.json
Use manifest.json from references.tc.net instead of local apis.json

When I run this locally, I got the following for git status.
  modified:   bin/update-apis.js
  modified:   lib/apis.js
  modified:   taskcluster-client.js
The differences in lib/apis.js look like normal updates of the api and
the browserified client is a little different

petemoore/taskcluster-client,taskcluster/taskcluster-client,petemoore/taskcluster-client,shinglyu/taskcluster-client,shinglyu/taskcluster-client,shinglyu/taskcluster-client,petemoore/taskcluster-client