ICM: Redis service added for Travis.

Author: dmitry-ivanov

.travis.yml

@@ -5,6 +5,9 @@ php:
   - 7.0
   - 7.1
 
+services:
+  - redis-server
+
 before_install:
   - echo "extension = redis.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini