Update: if not VTK nor wxwidgets then disable visualization Note: from http://dev.pointclouds.org/projects/pcl/wiki VTK and wxwidgets are        optional
Update: if not VTK nor wxwidgets then disable visualization
Note: from http://dev.pointclouds.org/projects/pcl/wiki VTK and wxwidgets are 
      optional


git-svn-id: 1af002208e930b4d920e7c2b948d1e98a012c795@109 a9d63959-f2ad-4865-b262-bf0e56cfafb6

psoetens/pcl-svn,psoetens/pcl-svn,psoetens/pcl-svn,psoetens/pcl-svn,psoetens/pcl-svn