Added BaseChannelSASLAuthenticationInterface.
BaseConnection: Implemented missed addChannel() method.
BaseChannelCaptchaAuthenticationInterface: Fixed property exposing.
BaseConnectionAddressingInterface: Fixed comments.
base-connection.cpp: Fixed comments.
Improved BaseConnectionContactListInterface.

Implemented missing callback methods.
Removed deprecated methods.
Added BaseConnectionAliasingInterface.
BaseChannel: Added setUniqueName() method.
Added BaseConnectionContactInfoInterface.
Added BaseChannelSecurableInterface.