incorrect call to _fast_predecessor from betweenness functions when cutoff is used. Fixes #88.
incorrect call to _fast_predecessor from betweenness functions
when cutoff is used.
Fixes #88.

--HG--
extra : convert_revision : svn%3A3ed01bd8-26fb-0310-9e4c-ca1a4053419f/networkx/trunk%40523

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