npm failed to install due to old polyfill-service dep

[SpaceK33z]

By upgrading the polyfill-service, npm or yarn will no longer fail to install because of this message:

npm ERR! notsup Unsupported engine for hawk@0.10.2: wanted: {"node":"0.8.x"} (current: {"node":"6.8.1","npm":"3.10.8"})
npm ERR! notsup Not compatible with your version of node/npm: hawk@0.10.2
npm ERR! notsup Not compatible with your version of node/npm: hawk@0.10.2
npm ERR! notsup Required: {"node":"0.8.x"}
npm ERR! notsup Actual:   {"npm":"3.10.8","node":"6.8.1"}

In #635 it is mentioned that previously it wasn't possible to update since polyfill-service produced some console.log's that couldn't be hidden, but this was fixed in 3.13.0.

Fixes #635

[SevInf]

Thanks for the contribution.
In the end, we've decided that pulling in 200MB website for picking 2 polyfills is not that good of idea, so we've removed the dependency altogether. For continuation see #674

[SpaceK33z]

@SevInf, oh that's even better, 200MB is really huge indeed.