fix: small bug in @concatenatePointCloud@ when one input cloud was empty
fix: small bug in @concatenatePointCloud@ when one input cloud was empty

git-svn-id: 5398946ba177a3e438c2dae55e2cdfc2fb96c905@6396 a9d63959-f2ad-4865-b262-bf0e56cfafb6

stefanbuettner/pcl,locnx1984/pcl,soulsheng/pcl,zhangxaochen/pcl,kanster/pcl,KevenRing/pcl,sbec/pcl,nikste/pcl,shangwuhencc/pcl,closerbibi/pcl,simonleonard/pcl,pkuhto/pcl,zavataafnan/pcl-truck,soulsheng/pcl,srbhprajapati/pcl,RufaelDev/pcc-mp3dg,cascheberg/pcl,shyamalschandra/pcl,DaikiMaekawa/pcl,v4hn/pcl,LZRS/pcl,nh2/pcl,mschoeler/pcl,KevenRing/pcl,shivmalhotra/pcl,3dtof/pcl,ipa-rmb/pcl,fanxiaochen/mypcltest,srbhprajapati/pcl,zavataafnan/pcl-truck,lydhr/pcl,DaikiMaekawa/pcl,damienjadeduff/pcl,kanster/pcl,Nerei/pcl_old_repo,locnx1984/pcl,closerbibi/pcl,the-glu/pcl,msalvato/pcl_kinfu_highres,chenxingzhe/pcl,Tabjones/pcl,zhangxaochen/pcl,msalvato/pcl_kinfu_highres,3dtof/pcl,mschoeler/pcl,ResByte/pcl,3dtof/pcl,zhangxaochen/pcl,sbec/pcl,jeppewalther/kinfu_segmentation,the-glu/pcl,pkuhto/pcl,KevenRing/pcl,nh2/pcl,DaikiMaekawa/pcl,damienjadeduff/pcl,DaikiMaekawa/pcl,starius/pcl,ipa-rmb/pcl,LZRS/pcl,LZRS/pcl,jakobwilm/pcl,srbhprajapati/pcl,chatchavan/pcl,chatchavan/pcl,stefanbuettner/pcl,ResByte/pcl,krips89/pcl_newfeatures,stefanbuettner/pcl,chenxingzhe/pcl,closerbibi/pcl,stfuchs/pcl,v4hn/pcl,chatchavan/pcl,nh2/pcl,fanxiaochen/mypcltest,raydtang/pcl,mschoeler/pcl,shangwuhencc/pcl,shangwuhencc/pcl,Tabjones/pcl,shyamalschandra/pcl,3dtof/pcl,fanxiaochen/mypcltest,mschoeler/pcl,jeppewalther/kinfu_segmentation,sbec/pcl,locnx1984/pcl,mschoeler/pcl,nikste/pcl,Tabjones/pcl,zhangxaochen/pcl,jeppewalther/kinfu_segmentation,pkuhto/pcl,stfuchs/pcl,damienjadeduff/pcl,cascheberg/pcl,shivmalhotra/pcl,MMiknis/pcl,KevenRing/pcl,soulsheng/pcl,sbec/pcl,the-glu/pcl,Nerei/pcl_old_repo,KevenRing/vlp,MMiknis/pcl,krips89/pcl_newfeatures,starius/pcl,msalvato/pcl_kinfu_highres,MMiknis/pcl,cascheberg/pcl,fskuka/pcl,lydhr/pcl,srbhprajapati/pcl,ResByte/pcl,mikhail-matrosov/pcl,shangwuhencc/pcl,shyamalschandra/pcl,simonleonard/pcl,krips89/pcl_newfeatures,shyamalschandra/pcl,chenxingzhe/pcl,chatchavan/pcl,KevenRing/vlp,cascheberg/pcl,nikste/pcl,nikste/pcl,kanster/pcl,stefanbuettner/pcl,pkuhto/pcl,ResByte/pcl,krips89/pcl_newfeatures,soulsheng/pcl,msalvato/pcl_kinfu_highres,mikhail-matrosov/pcl,lydhr/pcl,shivmalhotra/pcl,the-glu/pcl,nh2/pcl,fskuka/pcl,RufaelDev/pcc-mp3dg,wgapl/pcl,KevenRing/vlp,locnx1984/pcl,lebronzhang/pcl,v4hn/pcl,zavataafnan/pcl-truck,fanxiaochen/mypcltest,stfuchs/pcl,mikhail-matrosov/pcl,MMiknis/pcl,jakobwilm/pcl,ipa-rmb/pcl,fskuka/pcl,nikste/pcl,Tabjones/pcl,ipa-rmb/pcl,drmateo/pcl,pkuhto/pcl,RufaelDev/pcc-mp3dg,Nerei/pcl_old_repo,LZRS/pcl,simonleonard/pcl,locnx1984/pcl,RufaelDev/pcc-mp3dg,DaikiMaekawa/pcl,raydtang/pcl,lebronzhang/pcl,simonleonard/pcl,jeppewalther/kinfu_segmentation,lebronzhang/pcl,RufaelDev/pcc-mp3dg,closerbibi/pcl,v4hn/pcl,starius/pcl,lydhr/pcl,fskuka/pcl,wgapl/pcl,3dtof/pcl,jakobwilm/pcl,shivmalhotra/pcl,KevenRing/vlp,damienjadeduff/pcl,drmateo/pcl,sbec/pcl,ResByte/pcl,lebronzhang/pcl,starius/pcl,chenxingzhe/pcl,ipa-rmb/pcl,Tabjones/pcl,jeppewalther/kinfu_segmentation,wgapl/pcl,starius/pcl,stefanbuettner/pcl,drmateo/pcl,krips89/pcl_newfeatures,simonleonard/pcl,jakobwilm/pcl,drmateo/pcl,msalvato/pcl_kinfu_highres,lebronzhang/pcl,shyamalschandra/pcl,cascheberg/pcl,drmateo/pcl,fanxiaochen/mypcltest,wgapl/pcl,damienjadeduff/pcl,the-glu/pcl,kanster/pcl,jakobwilm/pcl,zavataafnan/pcl-truck,srbhprajapati/pcl,MMiknis/pcl,lydhr/pcl,Nerei/pcl_old_repo,closerbibi/pcl,soulsheng/pcl,raydtang/pcl,v4hn/pcl,raydtang/pcl,KevenRing/vlp,mikhail-matrosov/pcl,stfuchs/pcl,LZRS/pcl,shivmalhotra/pcl,kanster/pcl,wgapl/pcl,mikhail-matrosov/pcl,zhangxaochen/pcl,zavataafnan/pcl-truck,raydtang/pcl,fskuka/pcl,stfuchs/pcl,chenxingzhe/pcl,shangwuhencc/pcl,KevenRing/pcl