enhances CI to build webfonts and sync updates to the centralized repo

(ci):    install curl, gnupg2, git, gcc, build-essential and python-dev as additional dependencies;
(ci):    install node.js 7.x using curl;
(ci):    install ttf2eot using npm;
(ci):    clone and brotoli for generating woff2;
(make):  add a step to convert ttf to eot using ttf2eot;
(ci):    add deploy.sh to clone, update, commit and push to smc-webfonts repo;
(chore): add a .gitignore file;