Version beta12

Changed function delete_private_data() to delete more data, including tables setting and member_image, for better data protection

Bugfix related to linux-sh in shell script lf_export

New fields password_reset_secret and password_reset_secret_expiry in member table

UNIQUE constraint for notify_email_secret and password_reset_secret fields in member table

Database constraint forbids adding yourself as a contact

     1.1 --- a/lf_export	Fri Dec 25 12:00:00 2009 +0100
     1.2 +++ b/lf_export	Sat Jan 02 12:00:00 2010 +0100
     1.3 @@ -19,6 +19,7 @@
     1.4      echo "Dumping and compressing copied database to \"$2\"..."
     1.5      if pg_dump --no-owner --no-privileges "$EXPORT_DBNAME" | gzip -9 > "$2"
     1.6      then
     1.7 +      true
     1.8      else
     1.9        retval=4
    1.10      fi