Add dependencies and repo to package.json.
Add dependencies and repo to package.json.

These dependencies will be used to build the project. This is why they
are registered as development dependencies.

The repo entry is used by npm to find where the app lives. It will
probably not be very relevant for us.

Refs: #1

into-cps/intocps-ui,into-cps/intocps-ui,into-cps/intocps-ui,into-cps/intocps-ui,into-cps/intocps-ui