Add Travis configuration

.travis.yml

@@ -0,0 +1,15 @@
+language: php
+php:
+  - 5.6
+
+services:
+  - redis-server
+
+before_script:
+  - echo "extension = redis.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
+  - composer self-update
+  - composer install --no-interaction --prefer-source --dev
+  - phpenv rehash
+
+script:
+  - vendor/bin/phpunit --verbose --colors