add .travis.yml
add .travis.yml

afk11/bitcoinconsensus-php,afk11/bitcoinconsensus-php,Bit-Wasp/bitcoinconsensus-php,Bit-Wasp/bitcoinconsensus-php,Bit-Wasp/bitcoinconsensus-php,Bit-Wasp/bitcoinconsensus-php,afk11/bitcoinconsensus-php,afk11/bitcoinconsensus-php