Search for oncofuse executable instead of the JAR.
Search for oncofuse executable instead of the JAR.

Fixes #1227. Thanks to @sluke123 for posting about the issue.

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