Added travis for python continuous integration testing
Added travis for python continuous integration testing

tritoanst/ccxt,aiueogawa/ccxt,thijstriemstra/ccxt,aiueogawa/ccxt,ccxt/ccxt,aiueogawa/ccxt,tritoanst/ccxt,thijstriemstra/ccxt,thijstriemstra/ccxt,tritoanst/ccxt,ccxt/ccxt,tritoanst/ccxt,ccxt/ccxt,thijstriemstra/ccxt,ccxt/ccxt,ccxt/ccxt,aiueogawa/ccxt