Configure for auto-deployment on commit to dev

Remove outdated 'Engine' versions in package.json
Remove 'build' dir from .gitignore (track build dir)
Merge pull request #173 from phillipalexander/auto-deploy-dev

Configure for auto-deployment on commit to dev ballerawesome
Merge pull request #172 from ehannum/oculus-camera

Oculus camera with HUD. closes #166
Updated readme to include dev staging
Merge branch 'dev' into new-radar
Merged with most recent dev build