[power-pro] kudos for pcre regex plugin

[sgp]

I just wanted to thank Alan and Sheri (and Julien, Bruce and everyone on
the trail...) for the benefits of the new regex plugin and its
documentation. I used it to solve a pretty involved task, and
it worked flawlessly. Moreover, for the most part all I had to do was
adapting the 2D vector example in the pcreCaptureCount help page. It
took me a while to get it, but once I did, it added a lot of flexibility
to my script. Thanks again.