Build up entity panel view

- Clicking an entity panel link will dropdown a list of links/relationships
- Using communicator now for messaging between components
- Removed the old panel click code and data attributes
- Need to fix some of the mockdata to go more than one level deep
Fix mockdata
Update mockjax config
Improve event handling in model navigator

- Clicking through panels would open more and more panels because of old panels
  responding to clicks
- Used trigger and listenTo to bubble the event up to the panel instead of using
  communicator
Merge pull request #10 from kvedananda/dev

Entity panel view for model navigator