Hv3 - Tcl/Tk Web Browser not detected

[summercms]

Html Viewer 3 (hv3) is a powerful yet minimalist web browser that uses Tkhtml3 as a rendering engine and SEE (Simple ECMAScript Engine) to interpret scripts. The application itself is written in Tcl. Currently it is at alpha stage.

Link: http://tkhtml.tcl.tk/hv3.html

Regex:

/(Hv3)(\/)([0-9a-zA-Z\.]+)/

Example UA:

Mozilla/5.1 (X11; U; Linux i686; en-US; rv:1.8.0.3) Gecko/20060425 SUSE/1.5.0.3-7 Hv3/alpha