Change the channel mode flags from const ints in names.c to #define macros in names.h.

git-svn-id: svn://svn.code.sf.net/p/bitchx/code/trunk@134 13b04d17-f746-0410-82c6-800466cd88b0

source/commands.c

@@ -3534,7 +3534,6 @@ char *str = NULL;
 
 BUILT_IN_COMMAND(e_topic)
 {
-extern int MODE_TOPIC;
 	char	*arg = NULL;
 	char	*arg2;
 	ChannelList *chan;