EPFL cacert system wide install

#Doc: 
- http://certauth.epfl.ch/cacert.html 
- https://help.ubuntu.com/community/OpenSSL 

#Installation: 
cd ~ && wget http://certauth.epfl.ch/epflca.pem 
sudo cp epflca.pem /usr/share/ca-certificates/epflca.crt 
sudo dpkg-reconfigure ca-certificates 
sudo update-ca-certificates