Address deprecation of request package

[andrewplummer]

Since I don't see this issue here this package likely needs to move off request at some point:

node-gcm > request@2.87.0: request has been deprecated, see https://github.com/request/request/issues/3142

[PeterBurner]

Any news?

[ijsje71]

@ToothlessGear will this be addressed soon? Currently the request package contains a (albeit small) vulnerability.