[pvrusb2] New Gentoo pvrusb2 ebuild

[roger@eskimo.com]

I've updated the gentoo pvrusb2 ebuild.

20 Apr 2006; Roger <roger at eskimo.com>;
  pvrusb2-200604.18.ebuild
  New version.
  Pvrusb2 ebuild now defaults to using kernel tree ivtv code.
  Support for using latest hauppauge firmwares.

pvrusb2-20060418.ebuild
http://bugs.gentoo.org/show_bug.cgi?id=78570