Patch to current ebuild attached, thanks. ;)
Created attachment 141588 [details, diff] systemtrayn-0.3.2.1.ebuild.diff
Works perfectly, thanks!
Well, the ebuild was for 0.3.2.1 (it doesn't matter, .1 is just 0compile fix), so you can nuke the versionator stuff and use PV instead of MY_PV there. :)