Patch Submission

The patch that I submitted contains two files:
 1. pnLegacy.php
    - Added legacy functions that were necessary for module
initialization.  Most of these functions were pnDB<name>.  
 2. /modules/example/xarinit.php
    - Fixed some basic bugs in the code.  $query in error messages does
not exist prior and should be $sql.  Check that category module exists
before removing deleting those module vars.

This patch was intentionally brief as this was my first attempt at the
Xaraya patch process using BitKeeper.

If you have any questions regarding the changes in the patch, feel free
to contact me.

Cheers,
Rich