Implement basic game updater.

Resolves MMC-4: https://jira.forkk.net/browse/MMC-4

libutil/include/netutils.h

@@ -0,0 +1,36 @@
+/* Copyright 2013 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef NETUTILS_H
+#define NETUTILS_H
+
+#include <QObject>
+
+#include <QNetworkReply>
+#include <QEventLoop>
+
+namespace NetUtils
+{
+
+inline void waitForNetRequest(QNetworkReply *netReply)
+{
+	QEventLoop loop;
+	loop.connect(netReply, SIGNAL(finished()), SLOT(quit()));
+	loop.exec();
+}
+
+}
+
+#endif // NETUTILS_H