Add a maximum message size for the Novell Groupwise protocol

If the OTR plugin doesn't know about Groupwise's maximum message size,
then encrypted authentication messages will be undesirably truncated.

Libpurple declares Groupwise's maximum size as 2048.  That didn't work
for OTR, so we use 1792 - that one works.

https://bugzilla.novell.com/show_bug.cgi?id=809052

ChangeLog

+2013-05-31
+
+	* otr-plugin.c: Add a default max message size for Novell
+	Groupwise.  Patch from Federico Mena Quintero
+	<federico@suse.com>.
+
 2013-05-29
 
 	* configure.ac:

otr-plugin.c

@@ -1161,9 +1161,10 @@ static void otrg_init_mms_table()
     static const struct s_OtrgIdProtPair {
 	char *protid;
 	int maxmsgsize;
-    } mmsPairs[8] = {{"prpl-msn", 1409}, {"prpl-icq", 2346},
+    } mmsPairs[] = {{"prpl-msn", 1409}, {"prpl-icq", 2346},
 	{"prpl-aim", 2343}, {"prpl-yahoo", 799}, {"prpl-gg", 1999},
-	{"prpl-irc", 417}, {"prpl-oscar", 2343}, {NULL, 0}};
+	{"prpl-irc", 417}, {"prpl-oscar", 2343},
+	{"prpl-novell", 1792}, {NULL, 0}};
     int i = 0;
     gchar *maxmsgsizefile;
     FILE *mmsf;