Fix bug where phantom.exit wouldn't exit properly

python/pyphantomjs/phantom.py

@@ -99,6 +99,7 @@ class Phantom(QObject):
     def _exit(self, code):
         self.m_terminated = True
         self.m_returnValue = code
+        QApplication.instance().exit(code)
 
     @pyqtProperty('QStringList')
     def args(self):

src/phantom.cpp

@@ -229,6 +229,7 @@ void Phantom::_exit(int code)
 {
     m_terminated = true;
     m_returnValue = code;
+    QApplication::instance()->exit(code);
 }
 
 bool Phantom::injectJs(const QString &jsFilePath) {