Display nested containers in the machine view.
Style radio buttons with ubuntu orange.
More menu items can be disabled.
Disable "Destroy" for deleted machines and containers.
Disable add container more menu on deleted machines.
Don't place units on deleted machines.
Merge pull request #525 from jaycee/do-not-use-deleted-machines

Do not allow units or containers to be added to deleted machines.

* Disable menu items that make no sense for deleted machines (e.g. Add
  container, Destroy)
* Cancel unit placement on machines that are deleted, with notification as to
  why it failed.
Merge pull request #522 from huwshimi/nested-containers

Display nested containers in the machine view

Include nested containers for display in the machine view.
Updated with classes and comments for clarity.
Dragging and dropping an unplaced unit to the root container now updates the icons on the machine and root container
Machine and container tokens are properly rendered with their tokens when the machine view is first instantiated and rendered
When units are added into the database they now update the parents machine token
Root container units are now shown on deploy
Merge pull request #523 from kadams54/radio-buttons

Style radio buttons with ubuntu orange.
Fixed failing tests and added additional tests for new token rendering functionality.
Merge pull request #524 from hatched/fix-machine-token-icons

Fix machine token icon rendering issues

Placed token icons do not render properly under multiple situations. This fixes the following issues:

 - Switching away then back to mv fixes the machine token rendering issues but only renders the root container and unit.
 - Machine token doesn't get updated to show the units on deploy.
 - Root container doesn't get updated properly on deploy wrt placed units.

Persisting issues - These issues will not be resolved until a refactor of the token rendering code post 1.0:
- Container tokens disappear when deployed then reappear with the unit token properly rendered.
- Unit icons in the machine tokens disappear then reappear a few seconds later with the ack from juju.