Merge pull request #31 from WyriHaximus-labs/php-5.4-allow-failure

Allow PHP 5.4 to fail

Author: WyriHaximus

.travis.yml

@@ -13,6 +13,11 @@ php:
   - 7.2
   - nightly
 
+matrix:
+  allow_failures:
+    - php: 5.4
+    - php: 7.1
+
 install:
   - ./travis-init.sh
   - composer install -n