Updated travis file.

Author: Mario Basic

.travis.yml

@@ -1,11 +1,10 @@
 language: php
 
 php:
-  - 5.4
-  - 5.5
   - 5.6
   - 7.0
   - hhvm
 
 install:
   - composer install --prefer-source --no-interaction
+  - cp .env.example .env