fixed a few compiler warnings
fixed a few compiler warnings

git-svn-id: 5398946ba177a3e438c2dae55e2cdfc2fb96c905@8050 a9d63959-f2ad-4865-b262-bf0e56cfafb6

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