* accept hot module changes, move routes into root component
* Fix "You cannot change <Router routes>; it will be ignored" error message by implementing solution in Github: https://github.com/ReactTraining/react-router/issues/2704#issuecomment-211352123
Router is only instantiated once in a production setting (e.g. not webpack-dev-server), so there is minimal overhead on producing a random key value for `Router`.
* Empty component, routes setup.
* Shared components for all Contracts inputs. Dont do anything yet.
* Check in reducer work so far. Still WIP.
* Header styling
* Check in input work so far, splitting to new branch.
* Strip down contracts inputs. Split out into form and explorer
* Contract selector
* Constantized config actions to use in contract saga.
* Interact explorer UI, no functionality
* Convert to constants, hook up errors
* Deploy and style cleanup.
* Remove unnecessary class.
* Fix flow errors with css modules
* Attempt at fixing all newly introduced flow errors in the contracts branch.
* Removed unused validator.
* Remove action constants, fix flow specificity in reducers
* Fix unit tests
* Move network contracts out of redux / sagas, and read directly from state with a selector in mapStateToProps.
* Fix initialState -> INITIAL_STATE rename
* foreach push -> concat