Disable surrounding text by default

If surrounding text is enabled, ibus_query_surrounding_text_cb will be
called and input keys won't be processed.

sublimeibus/sublime-ibus-agent.py

@@ -119,7 +119,7 @@ def print_message(message):
                       action="store_true", dest="quit", default=False,
                       help="quit if ibus-daemon is not running")
     parser.add_option("-s", "--surrounding-text",
-                      action="store_true", dest="surrounding_text", default=True,
+                      action="store_true", dest="surrounding_text", default=False,
                       help="enable surrounding text support")
     options, args = parser.parse_args()
     if options.quit:

sublimeibusplugin.py

@@ -359,9 +359,6 @@ def run(self, edit, key, alt=False, ctrl=False, shift=False, super=False):
         if self.view.settings().get('is_widget'):
             return
 
-        # TODO Why required this?
-        command.set_status(True)
-
         keysym = self.table.get(key, None)
         if keysym is not None:
             status.key = key