Rewrite Travis CI

.travis.yml

@@ -1,20 +1,24 @@
 language: php
 
-php:
-  - 7.1
-  - 7.0
-  - 5.6
-  - 5.5
-  - 5.4
-  - 5.3
-  - hhvm
-  - nightly
+dist: trusty
+sudo: false
 
 matrix:
+  include:
+    - php: 5.3
+      dist: precise
+    - php: 5.4
+    - php: 5.5
+    - php: 5.6
+    - php: 7.0
+    - php: 7.1
+    - php: nightly
+    - php: hhvm
+    - php: hhvm-nightly
   fast_finish: true
   allow_failures:
     - php: nightly
-    - php: 5.3
+    - php: hhvm-nightly
 
 before_script:
   - composer install --prefer-dist --no-interaction --no-progress