MetaVNC 0.6.0 released

The win32 viewer finally implements the meta window manager (but freedesktop.org style menu is not supported yet)

Changes from the version 0.5.7

COMMON:
- protocol enhancement to realize Microsoft-Windows-like task switch behavior
rfbWindowControlMsg ... add new control rfbWindowControlSetFocus
rfbWindowStateMsg ... add new state rfbWindowStateFocused

WIN32 SERVER:
- support rfbWindowControlSetFocus and rfbWindowStateFocused
- add debug messages
- switch libiconv to Win32 unicode APIs (WideCharToMultiByte, etc.)
- bug fix : dead lock in updating launcher
- use sendQueued instead of sendExact in vncClient::SendTransRect

WIN32 VIEWER:
- implement meta window manager
(freedesktop.org style menus are not supported yet)
- split MetaVNC options from original "Connection" option tab

LINUX SERVER:
- bug fix: add support for vncconnect which has been disabled since version 0.3.0