Update all deps (including Browserify)

The changes:

- Fix `npm run build` to work without `NODE_ENV=production`
- Update deps and fix gulpfile to work with the new versions
- Keep deps sorted for increased `npm install --save` goodness
- Added eyecandy by logging the `rebundle` executiong like other Gulp task, feel free to not include
- Install `karma-cli` so that `npm test` works out of the box