admin customer - bug fix

fixed a bug in the newsletter signup that was causing not all changes to
save.
admin - bug fix for bitwise

Found a bug in the two bitwise functions (orders and customer manager ->
newsletters) that was causing them to not work properly.
global - correct typo in anymessage

spelled persistent wrong in many places.
admin reports - enhancement

if a report has no rows, that is now reported instead of showing a blank
table.
admin - more corrections for typo

persistent was spelled wrong in a few places.
admin customer - fix misspellings of persistent