Bump dependencies to solve React 15 deprecations (#599)
Bump dependencies to solve React 15 deprecations (#599)

Bumping `react-component-managers` to `^3.0.2`, and `react-overlays` to `^0.7.0`, as mentioned in #559
haneev/react-widgets,jquense/react-widgets,jquense/react-widgets,jquense/react-widgets,haneev/react-widgets