Publish tempest details into database
Publish tempest details into database

It switches from tempest.log to rally.log to conform with rally/stestr.

Change-Id: I00c2a268a2bc312a22a8d70278fad618c1c25235
Signed-off-by: Cédric Ollivier <d48310251a4a484d041bc5d09a9ac4d86d20f793@orange.com>

opnfv/functest,opnfv/functest