Travis removed, circleci supports docker layer caching
Travis removed, circleci supports docker layer caching

bitjson/bitcore,bitpay/bitcore,bitjson/bitcore,bitpay/bitcore,bitpay/bitcore,martindale/bitcore,bitjson/bitcore,bitpay/bitcore,martindale/bitcore,bitjson/bitcore,martindale/bitcore,martindale/bitcore