fixing flann cmake scripts to search in system headers first (thanks Nizar)
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