Merge branch 'dev/parallel_tests' into 'master'

Tests: changes following factorization of logs options into bc_tester

See merge request !1
Status Job ID Name Coverage
  External
failed jenkins(Centos7)

00:00:01

canceled jenkins(Debian8)

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failed jenkins(Mac)

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failed jenkins(Centos7)

00:00:04

failed jenkins(Centos7)

00:00:01

failed jenkins(Centos7)

canceled jenkins(Debian8)

00:00:08

canceled jenkins(Mac)

00:00:09