fix for ImageViewer using VTK 5.10.1
Fix compilation and axis issue with VTK 5.10
fixing flann cmake scripts to search in system headers first (thanks Nizar)
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!
Fix issue #994 thanks to Jan Oberländer
Merge pull request #69 from nizar-sallem/fix_on_left_button_up

Fix issue #994 thanks to Jan Oberländer
fixing bug 988
Added new filters and functionality to the optronic viewer app; removed commented code from the fotonic grabber
Merge branch 'master' of https://github.com/PointCloudLibrary/pcl
added option to manually set the path for the FZAPI
added missing define for FZAPI
Merge pull request #68 from jkammerl/flann-include-fix

fixing flann cmake scripts to search in system headers first (thanks Niz...
Merge pull request #70 from jkammerl/bugfix988

fixing bug 988
removing virtual inline declarations in IO
Fix: set EIGEN_ROOT to get absolute path

This is the fix for issue #990 as suggested by Brian Wachter
Merge pull request #67 from nizar-sallem/vtk_5_10_fix

Fix compilation and axis issue with VTK 5.10.1
Merge pull request #71 from nizar-sallem/fix_eigen_root

Fix: set EIGEN_ROOT to get absolute path
Revert "Fix compilation and axis issue with VTK 5.10"

This reverts commit 99a6eaab53500d21faa59baf896be743842b8199.
Breaks visualization on Apple.