Update travis

Author: SMillerDev

.travis.yml

@@ -3,6 +3,7 @@ php:
 - '5.6'
 - '7.0'
 before_script:
+- if [[ ${TRAVIS_PHP_VERSION:0:3} == "5.6" ]]; then wget https://phar.phpunit.de/phpunit-5.7.phar && mv phpunit-5.7.phar phpunit && chmod +x phpunit; fi
 - if [[ ${TRAVIS_PHP_VERSION:0:3} == "5.6" ]]; then pecl install runkit; fi
 - if [[ ${TRAVIS_PHP_VERSION:0:3} == "5.6" ]]; then echo "runkit.internal_override=1" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini; fi
 - if [[ ${TRAVIS_PHP_VERSION:0:3} == "7.0" ]]; then pecl install uopz; fi