Enable opcache on travis to speed up build time

.travis.yml

@@ -13,9 +13,10 @@ services:
 before_install:
   - mysql -e 'CREATE DATABASE IF NOT EXISTS travis;'
 before_script:
+  - echo 'opcache.enable_cli=1' >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
   - cp .env.travis .env
-  - composer install --no-interaction --prefer-dist --no-suggest --verbose
-  - php artisan migrate --seed -v
+  - composer install --no-interaction --prefer-dist --no-suggest
+  - php artisan migrate --seed
 script:
   - vendor/bin/phpunit --coverage-clover coverage.xml
 notifications: