Shockvoice Server Alpha 0.6.0 for Linux

* client & server:

  * codec quality setting is variable now.

  * voicemail plugins implemented.

  * windows XP x64 Edition now supported.

  * anonymous user registration added.

  * channel passwords are inherited to subchannels.

  * some bugs in the permission system fixed.

  * ping-timeout code rewritten.

  * client:

  * finished audio plugin system. former c++ audio code rewritten in c#

  * logitech g15 plugin added.

  * chat plugin now highlights URLs and has a userlist that displays all active chatters.

  * user interface cleanup.

  * channel and message windows can be set to visible again if closed.

  * fixed occasional error when disconnecting.