Addresses issues when running signed-off-by checks on the Zephyr fork
due to GH rebases done on UX rewriting the commit with the primary email
instead of whatever email was used originally.
Signed-off-by: Fabio Utzig <fabio.utzig@nordicsemi.no>
Add a new directory "ci", to easily add new tests with setup/run phases
that don't require direct setup in .travis.yml. This also avoids
polution of scripts/.
Signed-off-by: Fabio Utzig <utzig@apache.org>