Fix a bunch of warnings.

src/XMPPConnection.h

@@ -360,6 +360,7 @@
 - (void)setLanguage: (OFString*)language;
 - (OFString*)language;
 - (BOOL)supportsRosterVersioning;
+- (BOOL)supportsStreamManagement;
 
 /// \cond internal
 - (void)XMPP_startStream;
@@ -384,3 +385,6 @@
 - (XMPPMulticastDelegate*)XMPP_delegates;
 /// \endcond
 @end
+
+@interface OFObject (XMPPConnectionDelegate) <XMPPConnectionDelegate>
+@end

src/XMPPContactManager.m

@@ -58,12 +58,12 @@
 	[super dealloc];
 }
 
-- (void)addDelegate: (id <XMPPConnectionDelegate>)delegate
+- (void)addDelegate: (id <XMPPContactManagerDelegate>)delegate
 {
 	[_delegates addDelegate: delegate];
 }
 
-- (void)removeDelegate: (id <XMPPConnectionDelegate>)delegate
+- (void)removeDelegate: (id <XMPPContactManagerDelegate>)delegate
 {
 	[_delegates removeDelegate: delegate];
 }

src/XMPPRoster.h

@@ -160,3 +160,6 @@
 - (XMPPRosterItem*)XMPP_rosterItemWithXMLElement: (OFXMLElement*)element;
 /// \endcond
 @end
+
+@interface OFObject (XMPPRosterDelegate) <XMPPRosterDelegate>
+@end

src/XMPPStreamManagement.m

@@ -90,11 +90,11 @@
 }
 */
 
-- (void)connection: (XMPPConnection*)connection_
+- (void)connection: (XMPPConnection*)connection
-     wasBoundToJID: (XMPPJID*)jid
+     wasBoundToJID: (XMPPJID*)JID
 {
-	if ([connection_ supportsStreamManagement])
+	if ([connection supportsStreamManagement])
-		[connection_ sendStanza:
+		[connection sendStanza:
 		    [OFXMLElement elementWithName: @"enable"
 					namespace: XMPP_NS_SM]];
 }