Fade/hide units/machines in machine view on command.
Change the sidebar background to white.
First pass at removing the old pyjuju code and its dependencies.
Fixed typo when removing modules
Fixed spurious test failure
Tests added for new events.
Review and QA feedback.
Merge pull request #613 from kadams54/added-services-bg

Change the sidebar background to white.
Merge pull request #612 from hatched/remove-pyjuju

First pass at removing the old pyjuju code and its dependencies.
Add attr docs.
Display added services in the sidebar.

Adds the actual services to the new sidebar view. Will respond to
database add and remove events.
Yay test fix?
Merge pull request #615 from makyo/fade-highlight-machines

Fade/highlight units/machines in machine view.
Merge pull request #614 from kadams54/added-services-list

Add the list of services to the new service bar.

Displays added services in the sidebar, as well as supporting navigation between charmbrowser and this new view.