add .gitignore patch by Michael Shuler; reviewed by jbellis for CASSANDRA-4899
add .gitignore
patch by Michael Shuler; reviewed by jbellis for CASSANDRA-4899

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