Fix the support backup Anonymizer

Idea taken from here https://confluence.atlassian.com/pages/viewpage.action?pageId=154633652

Support often takes data from customers where there's still a bit of overhead and time involved in getting the data from the customer to a working state in support.

What currently happends:

• Support needs to convince customers that our data anonymizer is safe enough for them to trust (it really isn't)
• Customer follows that guide (sometimes with difficulty, needing more bounces) and attaches the backup
• Support needs to restore the backup locally
  • Turn off emailing
  • Worry about CDATA cleaning
  • Change the passwords to sphere
  • Change any cwd_directory info disabling everything but local directory
  • Worry about any remote groups and make them local groups also
• Then we can log in and start troubleshooting

Request
Please fix joost.jar to perform all these changed to the .xml backup without supporters needing to worry about it in future.

This is used daily amongst supporters so a fix in this would save supporters of hours in time yearly.