Remove async variable for compatibility

wo/core/logging.py

@@ -44,7 +44,7 @@ class Log:
         """
         Logs debug messages into log file
         """
-        self.app.log.debug(Log.HEADER + msg + Log.ENDC)
+        self.app.log.debug(Log.HEADER + msg + Log.ENDC, __name__)
 
     def wait(self, msg, end='\r', log=True):
         """

wo/core/logwatch.py

@@ -65,7 +65,7 @@ class LogWatcher(object):
     def __del__(self):
         self.close()
 
-    def loop(self, interval=0.1, async=False):
+    def loop(self, interval=0.1, req_async=False):
         """Start the loop.
         If async is True make one loop then return.
         """
@@ -73,7 +73,7 @@ class LogWatcher(object):
             self.update_files()
             for fid, file in list(iter(self.files_map.items())):
                 self.readfile(file)
-            if async:
+            if req_async:
                 return
             time.sleep(interval)