Prefer simple-phpunit over direct phpunit deps

phpunit/phpunit/4.7/manifest.json

@@ -2,5 +2,7 @@
     "copy-from-recipe": {
         "phpunit.xml.dist": "phpunit.xml.dist"
     },
-    "aliases": ["phpunit"]
+    "gitignore": [
+        "/phpunit.xml"
+    ]
 }

phpunit/phpunit/4.7/phpunit.xml.dist

@@ -21,4 +21,8 @@
             <directory>tests/</directory>
         </testsuite>
     </testsuites>
+
+    <listeners>
+        <listener class="Symfony\Bridge\PhpUnit\SymfonyTestsListener" />
+    </listeners>
 </phpunit>

phpunit/phpunit/4.7/post-install.txt

@@ -0,0 +1,2 @@
+Adding <comment>phpunit/phpunit</> as a dependency is <comment>discouraged</>.
+You should require <fg=green>simple-phpunit</> instead.