Merge from experimental branch and Enhance description

This MR merges Anton's work from experimental and enhances the description to make heaptrack discoverable. When I was debugging a dbus+kde memory ballooning (alternatively, possible memleak) I was not able to find heaptrack with a keyword search, so packaged memleax. Having now discovered heaptrack via the memleax bugtracker (yes, really!) I believe the best path forward is to make heaptrack discoverable and scrap my work on memleax.

I will file a bug shortly, and will add a commit that cross-references that bug.