win32-loader autobyhand

win32-loader autobyhand

fix dak.conf by closing }; the entry.
use proper set statements
use scriptvars and later on $ftpdir instead of writing full path
drop error() function, only used once.
proper indentation
change target path to build a win32-loader/$SUITE tree so different suites can have different installer for win32
remove unused trap - and call to undefined function cleanup.

Signed-off-by: Joerg Jaspert <joerg@debian.org>