Documentation page displays all imported third party elements in polymer app

[tpluscode]

Description

Dropdown on documentation page includes all elements imported from bower_components when a polymer-cli application is served with polymer serve

Expected outcome

Documentation should only display elements from current repository

Live Demo

1. Clone https://github.com/pgs-dev/framapp-polymer
2. bower i
3. polymer serve
4. Go to http://localhost:8080/components/framapp-polymer/

See this (or similar):

Steps to reproduce

1. polymer init application
2. Create some elements
3. polymer serve --open