rpcrt4: Pass the SPN input to RpcBindingSetAuthInfoA/W into InitializeSecurityContextW instead of AcquireCredentialsHandleA/W.

Don't release the old auth info until we successfully have a new auth 
info and return failure to the caller if RpcAuthInfo_Create fails.

winemenubuilder: Expand environment variable references in the shortcut's WorkDir, Description and IconPath fields.

Move X11DRV_SetWindowRgn to window.c.

The index is zero based so we should obviously be returning
STATUS_INVALID_PARAMETER if the index is equal to the ACE count.

Add a move_window_bits() function where the missing functionality of
moving the window contents should go.