Add proper path to the test bcbio_system.yaml file.
Add proper path to the test bcbio_system.yaml file.

lbeltrame/bcbio-nextgen,brainstorm/bcbio-nextgen,chapmanb/bcbio-nextgen,vladsaveliev/bcbio-nextgen,biocyberman/bcbio-nextgen,a113n/bcbio-nextgen,vladsaveliev/bcbio-nextgen,biocyberman/bcbio-nextgen,a113n/bcbio-nextgen,vladsaveliev/bcbio-nextgen,chapmanb/bcbio-nextgen,chapmanb/bcbio-nextgen,lbeltrame/bcbio-nextgen,brainstorm/bcbio-nextgen,brainstorm/bcbio-nextgen,biocyberman/bcbio-nextgen,a113n/bcbio-nextgen,lbeltrame/bcbio-nextgen