We'll probably change the protocol to use msgpack instead of trees of Python
structs. By adding the dependency now, it will be possible to update the NEO
code (which is in development mode) without rebuilding the whole software.

If not so, trafficserver configuration is removed and then replaced on
every slapos node instance call making traffic server unstable

component/bazel: Use zulu openjdk8 to build bazel. We don't need to install linux distribution's openjdk8 package.

software/seleniumrunner: use Firefox 45 for now until we fix erp5.util so that non-ASCII character in stderr does not block test suites.

Upstream seem to have re-released the same version (?!) with the patch
pre-applied. Oh well.

Now that it really works.

Helps sections using ${:_buildout_section_name_} to avoid filename
duplication.

Useful only for software-release development, not usage, so not adding it
to packaging, only to repository.