Only send time on JOIN if time isn't CURRENT.

CURRENT/'i' should be taken as the default anyway, and it's much much less spammy like this.
With large memos it's very easy to trigger flood protection if every handle sends a TIME>i whenever someone joins.

memos.py

@@ -1732,7 +1732,11 @@ class PesterMemo(PesterConvo):
         elif update == "join":
             self.addUser(h)
             time = self.time.getTime()
-            serverText = "PESTERCHUM:TIME>" + delta2txt(time, "server")
+            txt_time = delta2txt(time, "server")
+            # Only send if time isn't CURRENT, it's very spammy otherwise.
+            # CURRENT should be the default already.
+            if txt_time != "i":
+                serverText = "PESTERCHUM:TIME>" + txt_time
                 self.messageSent.emit(serverText, self.title())
         elif update == "+q":
             for c in chums:

pesterchum.py

@@ -2106,7 +2106,7 @@ class PesterWindow(MovingWindow):
             self.setChannelMode.emit(channel, "+s", "")
         if invite:
             self.setChannelMode.emit(channel, "+i", "")
-        memoWindow.sendTimeInfo()
+        # memoWindow.sendTimeInfo()
         memoWindow.show()
 
     def addChum(self, chum):