Bump to latest versions of the things.
Cope with nenya's split into nenya/nenya-tools.

I should really split off a vilya-tools from vilya, but I can't be fucked to do
that when I'm already so deep in yak hair that I can't tell whether it's day or
night.
Use new Git SCM URL.

Wow, it's been a long time since we did a Vilya release.
[maven-release-plugin] prepare release vilya-1.5