write all countries in db/seed
fix nil device problem
create protocols table
implement function for fetching proxies from letushide/xroxy
implement load_ranking_google_play with proxy
set timeout correctly
enable socks protocol
implement Proxy.check_ssl
implement Proxy.get_ssl_proxies_from_nordvpn
remove some methods
Merge pull request #9 from ryysd/get_proxy

Get proxy