removed phpunit from composer and edit .travis to use the built-in phpunit

Author: oscarotero

.travis.yml

@@ -11,11 +11,10 @@ php:
 
 matrix:
   allow_failures:
-    - php: 7.0
     - php: hhvm
 
 before_install:
   - composer self-update
   - composer install
 
-script: ./vendor/bin/phpunit
+script: phpunit

composer.json

@@ -24,8 +24,7 @@
     "require-dev": {
         "illuminate/view": "*",
         "twig/twig": "*",
-        "twig/extensions": "*",
-        "phpunit/phpunit": "~4.0"
+        "twig/extensions": "*"
     },
     "suggest": {
         "illuminate/view": "Is necessary if you want to use the Blade extractor",