fix nulls not appearing in python cql resultsets patch by Pavel Yaskevich; reviewed by jbellis for CASSANDRA-2613
fix nulls not appearing in python cql resultsets
patch by Pavel Yaskevich; reviewed by jbellis for CASSANDRA-2613

git-svn-id: 5b9f2d9930f7dfb79b2654297310ec296e5fde68@1100274 13f79535-47bb-0310-9956-ffa450edef68

sedulam/CASSANDRA-12201,pkdevbox/cassandra,sharvanath/cassandra,cooldoger/cassandra,emolsson/cassandra,yukim/cassandra,bcoverston/apache-hosted-cassandra,AtwooTM/cassandra,apache/cassandra,sluk3r/cassandra,yhnishi/cassandra,snazy/cassandra,jeffjirsa/cassandra,Instagram/cassandra,qinjin/mdtc-cassandra,juiceblender/cassandra,leomrocha/cassandra,Stratio/stratio-cassandra,krummas/cassandra,sayanh/ViewMaintenanceCassandra,sriki77/cassandra,yonglehou/cassandra,jeffjirsa/cassandra,shawnkumar/cstargraph,jasonstack/cassandra,bdeggleston/cassandra,phact/cassandra,scylladb/scylla-tools-java,macintoshio/cassandra,jrwest/cassandra,driftx/cassandra,ptnapoleon/cassandra,sriki77/cassandra,mkjellman/cassandra,szhou1234/cassandra,kangkot/stratio-cassandra,pthomaid/cassandra,a-buck/cassandra,RyanMagnusson/cassandra,beobal/cassandra,likaiwalkman/cassandra,iburmistrov/Cassandra,sharvanath/cassandra,jkni/cassandra,rdio/cassandra,mt0803/cassandra,WorksApplications/cassandra,josh-mckenzie/cassandra,blambov/cassandra,bdeggleston/cassandra,matthewtt/cassandra_read,ejankan/cassandra,kgreav/cassandra,heiko-braun/cassandra,szhou1234/cassandra,sluk3r/cassandra,adejanovski/cassandra,mheffner/cassandra-1,jasobrown/cassandra,adelapena/cassandra,scaledata/cassandra,miguel0afd/cassandra-cqlMod,emolsson/cassandra,ollie314/cassandra,mklew/mmp,vaibhi9/cassandra,pcn/cassandra-1,pcn/cassandra-1,apache/cassandra,instaclustr/cassandra,kgreav/cassandra,modempachev4/kassandra,modempachev4/kassandra,guanxi55nba/key-value-store,yangzhe1991/cassandra,rackerlabs/cloudmetrics-cassandra,HidemotoNakada/cassandra-udf,tommystendahl/cassandra,MasahikoSawada/cassandra,HidemotoNakada/cassandra-udf,instaclustr/cassandra,pallavi510/cassandra,ptuckey/cassandra,lalithsuresh/cassandra-c3,mike-tr-adamson/cassandra,DavidHerzogTU-Berlin/cassandraToRun,ptuckey/cassandra,caidongyun/cassandra,yukim/cassandra,iburmistrov/Cassandra,adelapena/cassandra,shookari/cassandra,ifesdjeen/cassandra,mambocab/cassandra,jsanda/cassandra,michaelsembwever/cassandra,WorksApplications/cassandra,blerer/cassandra,HidemotoNakada/cassandra-udf,whitepages/cassandra,jasobrown/cassandra,beobal/cassandra,DICL/cassandra,Stratio/stratio-cassandra,adejanovski/cassandra,thelastpickle/cassandra,mshuler/cassandra,swps/cassandra,pauloricardomg/cassandra,sbtourist/cassandra,sedulam/CASSANDRA-12201,tjake/cassandra,guanxi55nba/db-improvement,sbtourist/cassandra,sharvanath/cassandra,xiongzheng/Cassandra-Research,dprguiuc/Cassandra-Wasef,project-zerus/cassandra,tommystendahl/cassandra,shookari/cassandra,nvoron23/cassandra,nlalevee/cassandra,rmarchei/cassandra,ben-manes/cassandra,rmarchei/cassandra,sedulam/CASSANDRA-12201,pauloricardomg/cassandra,jbellis/cassandra,lalithsuresh/cassandra-c3,stef1927/cassandra,pauloricardomg/cassandra,tongjixianing/projects,rackerlabs/cloudmetrics-cassandra,leomrocha/cassandra,hhorii/cassandra,sayanh/ViewMaintenanceSupport,exoscale/cassandra,miguel0afd/cassandra-cqlMod,boneill42/cassandra,bcoverston/cassandra,chbatey/cassandra-1,josh-mckenzie/cassandra,rdio/cassandra,josh-mckenzie/cassandra,LatencyUtils/cassandra-stress2,jasobrown/cassandra,michaelmior/cassandra,jeffjirsa/cassandra,Bj0rnen/cassandra,asias/cassandra,belliottsmith/cassandra,ifesdjeen/cassandra,michaelsembwever/cassandra,weipinghe/cassandra,mklew/mmp,Stratio/cassandra,dongjiaqiang/cassandra,pcmanus/cassandra,szhou1234/cassandra,AtwooTM/cassandra,phact/cassandra,DikangGu/cassandra,JeremiahDJordan/cassandra,yangzhe1991/cassandra,weideng1/cassandra,michaelsembwever/cassandra,cooldoger/cassandra,hhorii/cassandra,aboudreault/cassandra,jrwest/cassandra,sayanh/ViewMaintenanceSupport,GabrielNicolasAvellaneda/cassandra,krummas/cassandra,bdeggleston/cassandra,spodkowinski/cassandra,pkdevbox/cassandra,asias/cassandra,LatencyUtils/cassandra-stress2,mgmuscari/cassandra-cdh4,sayanh/ViewMaintenanceCassandra,dkua/cassandra,thelastpickle/cassandra,a-buck/cassandra,tommystendahl/cassandra,sivikt/cassandra,darach/cassandra,EnigmaCurry/cassandra,knifewine/cassandra,EnigmaCurry/cassandra,qinjin/mdtc-cassandra,clohfink/cassandra,chbatey/cassandra-1,knifewine/cassandra,tjake/cassandra,jrwest/cassandra,clohfink/cassandra,pallavi510/cassandra,iburmistrov/Cassandra,mashuai/Cassandra-Research,project-zerus/cassandra,sriki77/cassandra,dkua/cassandra,rackerlabs/cloudmetrics-cassandra,nitsanw/cassandra,jkni/cassandra,aboudreault/cassandra,josh-mckenzie/cassandra,gdusbabek/cassandra,boneill42/cassandra,jeromatron/cassandra,swps/cassandra,pofallon/cassandra,mambocab/cassandra,vramaswamy456/cassandra,nakomis/cassandra,darach/cassandra,pcmanus/cassandra,regispl/cassandra,codefollower/Cassandra-Research,aweisberg/cassandra,yanbit/cassandra,ejankan/cassandra,thobbs/cassandra,pauloricardomg/cassandra,apache/cassandra,guanxi55nba/db-improvement,whitepages/cassandra,carlyeks/cassandra,belliottsmith/cassandra,kangkot/stratio-cassandra,guanxi55nba/key-value-store,regispl/cassandra,jasonwee/cassandra,DavidHerzogTU-Berlin/cassandraToRun,pkdevbox/cassandra,a-buck/cassandra,Imran-C/cassandra,macintoshio/cassandra,guard163/cassandra,pthomaid/cassandra,aarushi12002/cassandra,rogerchina/cassandra,chaordic/cassandra,DICL/cassandra,jsanda/cassandra,Jaumo/cassandra,shawnkumar/cstargraph,rogerchina/cassandra,belliottsmith/cassandra,christian-esken/cassandra,jeromatron/cassandra,RyanMagnusson/cassandra,pofallon/cassandra,DICL/cassandra,joesiewert/cassandra,mike-tr-adamson/cassandra,juiceblender/cassandra,Jaumo/cassandra,tommystendahl/cassandra,heiko-braun/cassandra,kangkot/stratio-cassandra,iamaleksey/cassandra,boneill42/cassandra,michaelmior/cassandra,guard163/cassandra,aureagle/cassandra,weipinghe/cassandra,pallavi510/cassandra,weideng1/cassandra,ptuckey/cassandra,rdio/cassandra,dprguiuc/Cassandra-Wasef,shookari/cassandra,bcoverston/cassandra,yhnishi/cassandra,ptnapoleon/cassandra,dongjiaqiang/cassandra,wreda/cassandra,Jollyplum/cassandra,bpupadhyaya/cassandra,snazy/cassandra,vaibhi9/cassandra,thobbs/cassandra,helena/cassandra,ifesdjeen/cassandra,fengshao0907/cassandra-1,DikangGu/cassandra,snazy/cassandra,mike-tr-adamson/cassandra,jsanda/cassandra,sluk3r/cassandra,nitsanw/cassandra,whitepages/cassandra,scaledata/cassandra,rogerchina/cassandra,pofallon/cassandra,gdusbabek/cassandra,nvoron23/cassandra,jkni/cassandra,iamaleksey/cassandra,weipinghe/cassandra,LatencyUtils/cassandra-stress2,yukim/cassandra,kgreav/cassandra,mike-tr-adamson/cassandra,newrelic-forks/cassandra,blambov/cassandra,GabrielNicolasAvellaneda/cassandra,helena/cassandra,macintoshio/cassandra,yukim/cassandra,scaledata/cassandra,tjake/cassandra,mshuler/cassandra,phact/cassandra,aureagle/cassandra,weideng1/cassandra,dprguiuc/Cassandra-Wasef,yanbit/cassandra,jeromatron/cassandra,mheffner/cassandra-1,stef1927/cassandra,driftx/cassandra,guard163/cassandra,taigetco/cassandra_read,thelastpickle/cassandra,shawnkumar/cstargraph,newrelic-forks/cassandra,Jollyplum/cassandra,hengxin/cassandra,ejankan/cassandra,krummas/cassandra,christian-esken/cassandra,joesiewert/cassandra,cooldoger/cassandra,strapdata/cassandra,Stratio/cassandra,Jaumo/cassandra,mheffner/cassandra-1,nakomis/cassandra,wreda/cassandra,codefollower/Cassandra-Research,joesiewert/cassandra,exoscale/cassandra,nutbunnies/cassandra,DikangGu/cassandra,blambov/cassandra,WorksApplications/cassandra,beobal/cassandra,jasobrown/cassandra,tongjixianing/projects,sivikt/cassandra,sivikt/cassandra,ben-manes/cassandra,blambov/cassandra,knifewine/cassandra,caidongyun/cassandra,guanxi55nba/db-improvement,Jollyplum/cassandra,JeremiahDJordan/cassandra,stef1927/cassandra,hengxin/cassandra,guanxi55nba/key-value-store,apache/cassandra,thobbs/cassandra,adelapena/cassandra,iamaleksey/cassandra,kangkot/stratio-cassandra,RyanMagnusson/cassandra,ollie314/cassandra,jeffjirsa/cassandra,nlalevee/cassandra,taigetco/cassandra_read,mashuai/Cassandra-Research,DavidHerzogTU-Berlin/cassandra,qinjin/mdtc-cassandra,helena/cassandra,nakomis/cassandra,aweisberg/cassandra,thelastpickle/cassandra,pcmanus/cassandra,bdeggleston/cassandra,fengshao0907/Cassandra-Research,ptnapoleon/cassandra,mambocab/cassandra,regispl/cassandra,taigetco/cassandra_read,aweisberg/cassandra,chbatey/cassandra-1,asias/cassandra,emolsson/cassandra,Stratio/stratio-cassandra,Instagram/cassandra,strapdata/cassandra,MasahikoSawada/cassandra,xiongzheng/Cassandra-Research,driftx/cassandra,bcoverston/cassandra,mt0803/cassandra,codefollower/Cassandra-Research,scylladb/scylla-tools-java,ibmsoe/cassandra,GabrielNicolasAvellaneda/cassandra,bpupadhyaya/cassandra,yanbit/cassandra,aarushi12002/cassandra,snazy/cassandra,modempachev4/kassandra,chaordic/cassandra,jrwest/cassandra,heiko-braun/cassandra,DavidHerzogTU-Berlin/cassandra,blerer/cassandra,gdusbabek/cassandra,fengshao0907/cassandra-1,michaelmior/cassandra,caidongyun/cassandra,nutbunnies/cassandra,vramaswamy456/cassandra,bmel/cassandra,vramaswamy456/cassandra,aboudreault/cassandra,Bj0rnen/cassandra,leomrocha/cassandra,swps/cassandra,pthomaid/cassandra,mkjellman/cassandra,AtwooTM/cassandra,fengshao0907/cassandra-1,pcn/cassandra-1,darach/cassandra,michaelsembwever/cassandra,blerer/cassandra,scylladb/scylla-tools-java,Imran-C/cassandra,jbellis/cassandra,ifesdjeen/cassandra,ollie314/cassandra,carlyeks/cassandra,MasahikoSawada/cassandra,sayanh/ViewMaintenanceCassandra,bmel/cassandra,ben-manes/cassandra,Instagram/cassandra,christian-esken/cassandra,juiceblender/cassandra,bpupadhyaya/cassandra,dkua/cassandra,WorksApplications/cassandra,DavidHerzogTU-Berlin/cassandraToRun,Stratio/stratio-cassandra,mshuler/cassandra,bcoverston/apache-hosted-cassandra,spodkowinski/cassandra,krummas/cassandra,fengshao0907/Cassandra-Research,yangzhe1991/cassandra,JeremiahDJordan/cassandra,yhnishi/cassandra,nitsanw/cassandra,miguel0afd/cassandra-cqlMod,rmarchei/cassandra,ibmsoe/cassandra,fengshao0907/Cassandra-Research,Stratio/cassandra,beobal/cassandra,strapdata/cassandra,aweisberg/cassandra,tjake/cassandra,matthewtt/cassandra_read,wreda/cassandra,mgmuscari/cassandra-cdh4,blerer/cassandra,scylladb/scylla-tools-java,bcoverston/apache-hosted-cassandra,mkjellman/cassandra,matthewtt/cassandra_read,carlyeks/cassandra,clohfink/cassandra,driftx/cassandra,DavidHerzogTU-Berlin/cassandra,nutbunnies/cassandra,jbellis/cassandra,likaiwalkman/cassandra,aureagle/cassandra,juiceblender/cassandra,szhou1234/cassandra,strapdata/cassandra,adelapena/cassandra,aarushi12002/cassandra,bcoverston/cassandra,project-zerus/cassandra,adejanovski/cassandra,jasonstack/cassandra,kangkot/stratio-cassandra,yonglehou/cassandra,nvoron23/cassandra,mgmuscari/cassandra-cdh4,newrelic-forks/cassandra,spodkowinski/cassandra,Instagram/cassandra,Imran-C/cassandra,xiongzheng/Cassandra-Research,likaiwalkman/cassandra,ibmsoe/cassandra,dongjiaqiang/cassandra,instaclustr/cassandra,nlalevee/cassandra,kgreav/cassandra,spodkowinski/cassandra,mashuai/Cassandra-Research,mklew/mmp,bmel/cassandra,stef1927/cassandra,instaclustr/cassandra,lalithsuresh/cassandra-c3,hhorii/cassandra,belliottsmith/cassandra,cooldoger/cassandra,mkjellman/cassandra,exoscale/cassandra,hengxin/cassandra,EnigmaCurry/cassandra,mt0803/cassandra,sbtourist/cassandra,jasonstack/cassandra,iamaleksey/cassandra,vaibhi9/cassandra,jasonwee/cassandra,clohfink/cassandra,chaordic/cassandra,Stratio/stratio-cassandra,Bj0rnen/cassandra,mshuler/cassandra,yonglehou/cassandra,jasonwee/cassandra,tongjixianing/projects