Release 2.0
-----------
* Added clients identification.
* Simultaneous several clients support by server.
* Per-client up/down scripts.

Release 1.5
-----------
* Nonce obfuscation/encryption.

Release 1.4
-----------
* Performance optimizations.

Release 1.3
-----------
* Heartbeat feature.
* Rehandshake feature.
* up- and down- optinal scripts.

Release 1.1
-----------
* FreeBSD support.

Release 1.0
-----------
* Initial stable release.