Renew the updater branch

Now with some actual consensus on what the updater will do!

mmc_updater/src/StandardDirs.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include "Platform.h"
+
+#include <string>
+
+class StandardDirs
+{
+	public:
+		static std::string appDataPath(const std::string& organizationName,
+                                       const std::string& appName);
+
+	private:
+#ifdef PLATFORM_UNIX
+		static std::string homeDir();
+#endif
+
+#ifdef PLATFORM_MAC
+		static std::string applicationSupportFolderPath();
+#endif
+};
+