fixed the compilation of PCD viewer on VTK 5.6
fixed the compilation of PCD viewer on VTK 5.6


git-svn-id: 5398946ba177a3e438c2dae55e2cdfc2fb96c905@7200 a9d63959-f2ad-4865-b262-bf0e56cfafb6

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