refactoring code to support a workbench UI layout.

[rrmerugu]

Also included

• [x] Response Console - show errors and last response when needed
• [x] Automatically assign Colors with consistent hashing - to different vertex and edge types
• [x] Watch stream of data from twitter (run the same query in intervals of time)
• [x] Ask to confirm before
  • [x] Re-rendering canvas.
  • [x] clearing canvas
• [x] Start a fresh canvas by clicking clear canvas button.
• [x] Switch between Graph, Table and JSON view