Warn on startup if swap file enabled on Windows
Warn on startup if swap file enabled on Windows

patch by Josh McKenzie; reviewed by Philip Thompson for CASSANDRA-7316

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