adding google fonts

the api only works with an api key which treats your privacy in a bad way:
https://developers.google.com/fonts/

so we will resort using the github repository of it.

the link the designers via google+ which is dead: https://plus.google.com/?pli=1

since github.com also limits access to it with api keys, i'll use a mirror of the github repo self hosted, looks do-able... 