Reformat package.json
Reformat package.json

We made some manual changes to `package.json` that were not formatted
correctly.

This PR lets `npm` itself reorganize and format the manifest.

resin-io/herostratus,resin-io/etcher,cedricve/etcher,resin-io/resin-etcher,resin-io/etcher,resin-io/etcher,resin-io/resin-etcher,cedricve/etcher,cedricve/etcher,resin-io/etcher,resin-io/herostratus,resin-io/etcher