Add XMPPDisco*.h to ObjXMPP.h, remove debug code

src/ObjXMPP.h

@@ -37,3 +37,7 @@
 
 #import "XMPPContact.h"
 #import "XMPPContactManager.h"
+
+#import "XMPPDiscoEntity.h"
+#import "XMPPDiscoNode.h"
+#import "XMPPDiscoIdentity.h"

src/XMPPDiscoEntity.m

@@ -90,12 +90,9 @@
 - (BOOL)connection: (XMPPConnection*)connection
       didReceiveIQ: (XMPPIQ*)IQ
 {
-	of_log(@"Called connection:didReceiveIQ:... %@ %@", [IQ to], _JID);
 	if (![[IQ to] isEqual: _JID])
 		return NO;
 
-	of_log(@"...that is for us");
-
 	OFXMLElement *query = [IQ elementForName: @"query"
 				       namespace: XMPP_NS_DISCO_ITEMS];