Adds in a new plugin that allows the toggling of the sidebar to be done from outside of react
Adds in state on button for sidebar toggle
Adds in cross-browser shims for ie - boot and braces
Fixes cross browser bugs in new global navigation and sidebar
Moves sidebar from app to plinth
Merge pull request #72 from MetaUnion/dok/feature/off-canvas-sidebar

Dok/feature/off canvas sidebar