force neighbors to be a dictionary in case it is returned as a list of (u,v) pairs
force neighbors to be a dictionary in case it is returned
as a list of (u,v) pairs

--HG--
extra : convert_revision : svn%3A3ed01bd8-26fb-0310-9e4c-ca1a4053419f/networkx/trunk%40144

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