Add split-view styles and markup inspired by Chrome dev tools
Redesign main nav and model types nav to be consistent with Chrome dev tools
Add sidebar-toggle component
Improve drag-handle component
Add resizable-column component
Render toolbars in routes using TabRoute
Improve consistency of toolbar components
Simplify notice styles
Rename .split-view to just .split
Redesign object inspector to be consistent with Chrome dev tools
Merge pull request #206 from domchristie/dev-tools-layout

Consistency with Chrome Dev Tools