Improved command /server ant its output, added plural form in PO files

src/irc/irc-server.c

@@ -2092,6 +2092,25 @@ irc_server_name_already_exists (char *name)
     return 0;
 }
 
+/*
+ * irc_server_get_channel_count: return number of channels for server
+ */
+
+int
+irc_server_get_channel_count (t_irc_server *server)
+{
+    int count;
+    t_irc_channel *ptr_channel;
+    
+    count = 0;
+    for (ptr_channel = server->channels; ptr_channel;
+         ptr_channel = ptr_channel->next_channel)
+    {
+        count++;
+    }
+    return count;
+}
+
 /*
  * irc_server_remove_away: remove away for all chans/nicks (for all servers)
  */