fixed a few compiler warnings
fixed a few compiler warnings

git-svn-id: 5398946ba177a3e438c2dae55e2cdfc2fb96c905@8338 a9d63959-f2ad-4865-b262-bf0e56cfafb6

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