Leading Zeros Truncated in Zip Codes for Generated Data

GenerateData.php gets the zip code values via lookup in zipcodes table (~line 1308). Since these are stored in zipcodes table as INTs - we need to add leading zero(s) to the string prior to storing in our address records. (e.g. add '0000' to beginning of string and then right trim back to 5 chars).

Pls recreate and commit generated.mysql once this is corrected.