script to shovel in pages-logging xml file into logging table

this script is for testing purposes only (populating the logging table
from a pages-logging xml file in order to test xml dumps); it also
populates the user table with mostly crap data except for the user
name and id as retrieved from the pages-logging xml file.

Change-Id: Ibe5ab1d8044a2faa60b1f1097dab1c40a553ebe3