Added dependency check to pcl_cuda_io

* Several headers depend on openni_image.h
Merge pull request #545 from kwaegel/dependency_check

Added dependency check to pcl_cuda_io
Display camera parameters with info, fov in degres
Merge pull request #544 from VictorLamoine/camera_fixes

Modified interactor style: display camera parameters
Merge branch 'master' of https://github.com/PointCloudLibrary/pcl into ICP_tutorial