Patch for:
-Perl blessing of exported variables is causing the SVs to be overwritten but never freed by the Perl GC.  I'm not sure if this is a feature or a bug in Perl as the documentation sucks.

Addressed by setting the blessed SVs in question to be undefined at the end of every script.  Caused a noticeable drop in memory for zones with a lot of quest events firing but it's probably not perfect.