[Fuego] rt-tests: multiple fixes

[Daniel Sangorrin]

> At a quick glance, these look good.  But I can't find them in your
> repo.
> 
> I worked on them from the e-mail list, but you might want to
> check your repo status.

Sorry about that, I missed the git push.... ;_;


> 
> Comments are on individual patches.
>  -- Tim
> 
> >
> > [PATCH 1/9] rt-test: have them use the same tarball
> > [PATCH 2/9] cyclictest: change twothreads to latest
> > [PATCH 3/9] rt-tests: add NEED_ROOT to all
> > [PATCH 4/9] rt-tests: use PARAMS instead of a single variable
> > [PATCH 5/9] rt-tests: add latest spec to those who didnt have it
> > [PATCH 6/9] hackbench: add meaningful specs
> > [PATCH 7/9] signaltest: add reference.json
> > [PATCH 8/9] pi_tests: add a positive log_compare
> > [PATCH 9/9] pi_tests: add meaningful specs
> >
> > Other things I am planning to do with rt-tests:
> >   - add remaining rt-tests
> >   - add "disturbance" loads
> >
> > Thanks,
> > Daniel
> >
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