Update documentation and change "thing" label to "data"
Update documentation and change "thing" label to "data"

--HG--
extra : convert_revision : svn%3A3ed01bd8-26fb-0310-9e4c-ca1a4053419f/networkx/trunk%401578

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