winex11.drv: support the startup notification fd.o spec (try 3)

[Damjan Jovanovic]

Changelog:
* Added support for the fd.o startup notification specification,
instead of the current optionally supported and half-broken
StartupWMClass.

Closes #6334.

Try 3 uses the WIN32 Get/SetEnvironmentVariable functions, locks X11,
and has been tested with managed, unmanaged and desktop windows.

Damjan Jovanovic
-------------- next part --------------
A non-text attachment was scrubbed...
Name: startup-notify.patch
Type: text/x-patch
Size: 5324 bytes
Desc: not available
Url : http://www.winehq.org/pipermail/wine-patches/attachments/20090101/366d27b3/attachment-0001.bin