Add disabled state for table status.
Update table screenshot.
Merge pull request #80 from rackerlabs/gray-status

Add disabled state for table status.
Merge branch 'refs/heads/master' into document-list-view-interactions

Conflicts:
	lib/stylesheets/patterns/_list-table.scss
[Enhancement][List Table] prevents disabled rows from having hover state
[Enhancement][rs-plus] adds disabled state for plus icon
[Enhancement][rs-plus] Adds disabled rs-plus icon
[Docs Update][Document List View Interactions] Adds disabled rows to list view pattern docs
[Docs Update][Document List View Interactions] Adds disabled row to list table ui component docs
[Docs Update][Document List View Interactions] Adds disabled row to list table ui component docs
[Docs Update][Document List View Interactions] Changes JS to disallow selection and cog activity for rows with disabled class on TR