fixed bug where searching for list range backward would always return 0 #631
fixed bug where searching for list range backward would always return 0
#631

liuslevis/DTCoreText,depl0y/DTCoreText,devontech/DTCoreText,bnickel/DTCoreText,AmberWhiteSky/DTCoreText,i-miss-you/DTCoreText,canyu9512/DTCoreText,DanGe42/DTCoreText,goodheart/DTCoreText,SanjoDeundiak/DTCoreText,liulinjian/DTCoreText,thusfresh/DTCoreText,jjamminjim/DTCoreText,barz/DTCoreText,jingchunYuan/DTCoreText,liulinjian/DTCoreText,Cocoanetics/DTCoreText,esteluk/DTCoreText,artifacts/DTCoreText,canyu9512/DTCoreText,wlisac/DTCoreText,z8927623/DTCoreText,wlisac/DTCoreText,devontech/DTCoreText,qskycolor/DTCoreText,yaoxiaoyong/DTCoreText,cnbin/DTCoreText,jingchunYuan/DTCoreText,rgregg/DTCoreText,depl0y/DTCoreText,artifacts/DTCoreText,gank0326/CoreTextWithHTML,artifacts/DTCoreText,cnbin/DTCoreText,rain1988/DTCoreText,Akylas/DTCoreText,DanGe42/DTCoreText,qskycolor/DTCoreText,goodheart/DTCoreText,i-miss-you/DTCoreText,openresearch/DTCoreText,w2592583/DTCoreText,1yvT0s/DTCoreText,barz/DTCoreText,appunite/DTCoreText,gank0326/CoreTextWithHTML,gsempe/DTCoreText,niklassaers/DTCoreText,iwakevin/DTCoreText,rgregg/DTCoreText,CoderJWYang/DTCoreText,sujeking/DTCoreText,z8927623/DTCoreText,shuoshi/DTCoreText,iwakevin/DTCoreText,AmberWhiteSky/DTCoreText,programming086/DTCoreText,1yvT0s/DTCoreText,davbeck/DTCoreText,youprofit/DTCoreText,Cocoanetics/DTCoreText,SanjoDeundiak/DTCoreText,pivotaltracker/DTCoreText,rain1988/DTCoreText,thusfresh/DTCoreText,niklassaers/DTCoreText,davbeck/DTCoreText,gsempe/DTCoreText,Akylas/DTCoreText,appunite/DTCoreText,wangmb/DTCoreText,bnickel/DTCoreText,Cocoanetics/DTCoreText,holgersindbaek/DTCoreText,artifacts/DTCoreText,sujeking/DTCoreText,Esdeath/DTCoreText,gnr/DTCoreText,xiaoyanit/DTCoreText,wangmb/DTCoreText,sidslog/DTCoreText,shuoshi/DTCoreText