Update charm release documentation.
Merge pull request #659 from frankban/update-doc-charm-release

Update charm release documentation.
Switch to CSS for visibility effects.
Consistency in Variable Names (TM).
Change version now shows the most recent version in the list
Merge pull request #660 from kadams54/css-hide-services

Switch to CSS for visibility effects.

Instead of setting attributes on the SVG elements (services and relations), use CSS classes and styling to show/hide/fade them.
Merge pull request #661 from hatched/change-version-fix

Change version now shows the most recent version in the list

Users were never able to upgrade to the latest version of the GUI because we started the counter off by 1.
Restore show/hide/fade transitions.
Forgot services.
Fix hide transition.
Merge pull request #663 from kadams54/restore-viz-animations

Restore show/hide/fade transitions.
Do not stringify null values in configs
allow null values to pass through the JSON stringifier
Update the tests to test for null values sent for websocket calls
Removed no longer needed cleanUpJSON method
Cleaning up some docs
Merge pull request #665 from hatched/simple-doc-update

Cleaning up some docs
Move status bar to the correct location.
Dropped "Add Units" header.
Merge pull request #667 from kadams54/move-health-bar-2

Move status bar to the correct location.

Fixes bug: https://launchpad.net/bugs/1379653