SMACK-339 Allow ConnectionListeners to be added before Connection is connected
SMACK-443 Remove duplicate reconnectionSuccessful() callback

The notifyReconnection() function is usually only called after the login
of a successful reconnect. However, when the first connect failed before
logging in, the callback is wrongly triggered before login().

Conflicts:
	source/org/jivesoftware/smack/XMPPConnection.java