Fix up -[XMPPJID isEqual:] and -[XMPPJID hash]
Add classes to support Service Discovery
Add support for calculating caps hashes
Add XMPPDisco*.h to ObjXMPP.h, remove debug code
DiscoEntity: Answer to requests send to the caps node
Fix a use after free() bug in XMPPSCRAMAuth
XMPPMulticastDelegate: Handle modifications of the delegates array
Adjust to ObjOpenSSL changes.
Coding style.