Update presets-loader.js (#563)
Update presets-loader.js (#563)

Enables running on node 4.xx
Strict mode needs to be declared
jishi/node-sonos-http-api,jishi/node-sonos-http-api,jzajac2/node-sonos-http-api,jzajac2/node-sonos-http-api,jzajac2/node-sonos-http-api