Fixing half-pixel error in CorrespondenceEstimationOrganizedProjection
Fixed half-pixel error in image_grabber (only half the cases were covered)
Merge pull request #60 from sdmiller/fix_correspondence_estimation

Fixed half-pixel error in CorrespondenceEstimationOrganizedProjection
Merge pull request #61 from sdmiller/image_grabber_projection

Fixed half-pixel error in image_grabber
fix for ImageViewer using VTK 5.10.1
fixed double include
Merge pull request #63 from aichim/master

Fix for VTK 5.10.1
* fixed issue #992 (http://dev.pointclouds.org/issues/992). Thanks Jan!
* implemented feature #993 (http://dev.pointclouds.org/issues/993). Thanks Jan!