Allow failures on PHP7

Author: vigneshgurusamy

.travis.yml

@@ -20,4 +20,9 @@ script:
     - vendor/bin/phpunit --coverage-clover=coverage.xml
 
 after_success:
-    - bash <(curl -s https://codecov.io/bash)
+    - bash <(curl -s https://codecov.io/bash)
+
+matrix:
+  allow_failures:
+    - php: 7.0
+  fast_finish: true