Log location of bcbio system YAML file used
Log location of bcbio system YAML file used

Help with debugging issues on bcbio_system.yaml retrieval.
Thanks to @mjafin.

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