Add explicit dependency on PHPUnit 5

composer.json

@@ -30,11 +30,10 @@
 		"tubalmartin/cssmin": "~2.4.8"
 	},
 	"require-dev": {
-		"leafo/lessphp": "~0.4.0",
-		"meenie/javascript-packer": "~1.1"
+		"phpunit/phpunit": "5.0.*"
 	},
 	"suggest": {
-		"leafo/lessphp": "LESS support",
-		"meenie/javascript-packer": "Keep track of the Packer PHP port using Composer"
+		"leafo/lessphp": "~0.4.0",
+		"meenie/javascript-packer": "~1.1"
 	}
 }

tests/TestCase.php

@@ -26,17 +26,6 @@ class TestCase extends PHPUnit_Framework_TestCase
             : strlen($str);
     }
 
-    /**
-     * Excluding from phpunit.xml does not work, even using dir,
-     * hence this dummy test.
-     *
-     * @link http://stackoverflow.com/q/2736343/2314626
-     */
-    public function test_does_nothing()
-    {
-
-    }
-
     /**
      * Common assertion for cache tests.
      *