Build fix for the NoGUI build.

Also removed a few compiler warning while I was at it.


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5387 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/DolphinWX/Src/MainNoGUI.cpp

@@ -130,6 +130,8 @@ void Host_Message(int Id)
 #endif
 }
 
+void Host_UpdateTitle(const char* title){};
+
 void Host_UpdateLogDisplay(){}