Speedup for bidirectional_shortest_path2. Now faster than bidirectional_shortest_path
Speedup for bidirectional_shortest_path2.
Now faster than bidirectional_shortest_path

--HG--
extra : convert_revision : svn%3A3ed01bd8-26fb-0310-9e4c-ca1a4053419f/networkx/trunk%40254

sharifulgeo/networkx,chrisnatali/networkx,jakevdp/networkx,RMKD/networkx,beni55/networkx,jakevdp/networkx,chrisnatali/networkx,debsankha/networkx,ionanrozenfeld/networkx,sharifulgeo/networkx,tmilicic/networkx,jtorrents/networkx,RMKD/networkx,ionanrozenfeld/networkx,ghdk/networkx,wasade/networkx,sharifulgeo/networkx,yashu-seth/networkx,ghdk/networkx,kai5263499/networkx,michaelpacer/networkx,dmoliveira/networkx,jfinkels/networkx,OrkoHunter/networkx,dmoliveira/networkx,jakevdp/networkx,NvanAdrichem/networkx,harlowja/networkx,RMKD/networkx,aureooms/networkx,ghdk/networkx,kernc/networkx,harlowja/networkx,jni/networkx,farhaanbukhsh/networkx,nathania/networkx,kai5263499/networkx,bzero/networkx,blublud/networkx,Sixshaman/networkx,chrisnatali/networkx,SanketDG/networkx,jni/networkx,ltiao/networkx,dhimmel/networkx,aureooms/networkx,andnovar/networkx,kernc/networkx,kernc/networkx,goulu/networkx,JamesClough/networkx,nathania/networkx,nathania/networkx,harlowja/networkx,jtorrents/networkx,kai5263499/networkx,bzero/networkx,jcurbelo/networkx,ionanrozenfeld/networkx,aureooms/networkx,bzero/networkx,farhaanbukhsh/networkx,dhimmel/networkx,dhimmel/networkx,debsankha/networkx,dmoliveira/networkx,debsankha/networkx,cmtm/networkx,farhaanbukhsh/networkx,jni/networkx,blublud/networkx,blublud/networkx