7.0 FP1 menu hotfix -> Several improvements, highly recommended!

For anyone who has been frustrated by:

- Slow login times while it generates the menu

- Too many XML files being created / taking up too much space

- Too much memory being used the first time you login to SL

- Changes to your menu only being propagated to the first machine you login to and not subsequent machines

This hotfix for 7.0 FP1 should effectively fix or improve all of the above issues.