More NL updates

Hello,

There are some more Language updates for NL. Please apply.

BTW, there's a small glitch in the source code, looking at this line in the po-file ($#036) with a missing ";"

#: wpsc-admin/db-upgrades/routines/2.php:93
#: wpsc-admin/db-upgrades/routines/2.php:296
#: wpsc-admin/db-upgrades/routines/2.php:444
msgid "&#036"
msgstr "&#036;"