Make wrapper_archiver option mandatory in savestare module

fs_uae_wrapper/savestate.py

@@ -8,6 +8,19 @@ class SaveState(base.Base):
     """
     Preserve save state.
     """
+    def __init__(self, conf_file, fsuae_options, configuration):
+        """
+        Params:
+            conf_file:      a relative path to provided configuration file
+            fsuae_options:  is an CmdOption object created out of command line
+                            parameters
+            configuration:  is config dictionary created out of config file
+        """
+        super(SaveState, self).__init__(conf_file, fsuae_options,
+                                        configuration)
+        self.arch_filepath = None
+        self.all_options['wrapper_save_state'] = '1'
+
     def run(self):
         """
         Main function which accepts configuration file for FS-UAE