Fixed doctest failures Added and changed some docstrings to align with PEP 257
Fixed doctest failures
Added and changed some docstrings to
align with PEP 257

--HG--
extra : convert_revision : svn%3A3ed01bd8-26fb-0310-9e4c-ca1a4053419f/networkx/trunk%40191

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