Log Message:
Bump PKGREVISION and bump BUILDLINK_RECOMMENDED.wv.

I saw on one of my boxes:

libwv-1.0.so.2:
        libxml2.so.8 => not found

This was caused because I have wv-1.0.2nb1 which depends on
libxml2>=2.6.2.

libxml2 was later upgraded, but since we don't have recursive dependencies
(which is fine), the old and now missing libxml2 library was still good
enough for wv. (I saw this because I updated libxml2 in place without removing
packages that depend on it