Fix build to prevent phpunit from exiting after build.

build.php

@@ -23,7 +23,7 @@
 $phpunitConfiguration = PHPUnit_Util_Configuration::getInstance(__DIR__ . '/phpunit.xml');
 $phpunitArguments = ['coverageHtml' => __DIR__ . '/coverage', 'configuration' => $phpunitConfiguration];
 $testRunner = new PHPUnit_TextUI_TestRunner();
-$result = $testRunner->doRun($phpunitConfiguration->getTestSuiteConfiguration(), $phpunitArguments);
+$result = $testRunner->doRun($phpunitConfiguration->getTestSuiteConfiguration(), $phpunitArguments, false);
 if (!$result->wasSuccessful()) {
     exit(1);
 }