review travis settings

Author: mikaelcom

.travis.yml

@@ -7,14 +7,11 @@ matrix:
   include:
     - php: 5.3
       dist: precise
-
-php:
-    - 5.3
-    - 5.4
-    - 5.5
-    - 5.6
-    - 7.0
-    - 7.1
+    - php: 5.4
+    - php: 5.5
+    - php: 5.6
+    - php: 7.0
+    - php: 7.1
 
 before_install:
     - composer self-update