ENH: Dependency Graph: find a path from between two vertices in graphs with multiple sinks and cycles, for example find a path from 1 to 4:
ENH: Dependency Graph: find a path from between two vertices in graphs
with multiple sinks and cycles, for example find a path from 1 to 4:

       -> 3
      /
1 -> 2 -> 4

espakm/CTK,AndreasFetzer/CTK,SINTEFMedtek/CTK,jcfr/CTK,mehrtash/CTK,Heather/CTK,finetjul/CTK,CJGoch/CTK,espakm/CTK,Heather/CTK,naucoin/CTK,151706061/CTK,vovythevov/CTK,fedorov/CTK,lassoan/CTK,151706061/CTK,fedorov/CTK,commontk/CTK,AndreasFetzer/CTK,SINTEFMedtek/CTK,ddao/CTK,jcfr/CTK,msmolens/CTK,rkhlebnikov/CTK,sankhesh/CTK,finetjul/CTK,AndreasFetzer/CTK,vovythevov/CTK,naucoin/CTK,commontk/CTK,AndreasFetzer/CTK,danielknorr/CTK,pieper/CTK,CJGoch/CTK,Sardge/CTK,fedorov/CTK,ddao/CTK,sankhesh/CTK,ddao/CTK,msmolens/CTK,naucoin/CTK,jcfr/CTK,lassoan/CTK,SINTEFMedtek/CTK,laurennlam/CTK,msmolens/CTK,vovythevov/CTK,danielknorr/CTK,jcfr/CTK,CJGoch/CTK,commontk/CTK,ddao/CTK,SINTEFMedtek/CTK,mehrtash/CTK,danielknorr/CTK,CJGoch/CTK,sankhesh/CTK,Sardge/CTK,Sardge/CTK,151706061/CTK,pieper/CTK,naucoin/CTK,lassoan/CTK,laurennlam/CTK,151706061/CTK,pieper/CTK,SINTEFMedtek/CTK,fedorov/CTK,rkhlebnikov/CTK,laurennlam/CTK,jcfr/CTK,danielknorr/CTK,msmolens/CTK,rkhlebnikov/CTK,Heather/CTK,Heather/CTK,commontk/CTK,rkhlebnikov/CTK,151706061/CTK,lassoan/CTK,sankhesh/CTK,laurennlam/CTK,pieper/CTK,finetjul/CTK,mehrtash/CTK,espakm/CTK,CJGoch/CTK,vovythevov/CTK,mehrtash/CTK,espakm/CTK,Sardge/CTK,finetjul/CTK