Again
Revert "A new normal refinement routine (#996)"

This reverts commit dc772a77f69816f84f89a3ce36cfd4bf52b05923.

Conflicts:
	filters/include/pcl/filters/impl/normal_refinement.hpp
	filters/include/pcl/filters/normal_refinement.h
Merge branch 'master' of https://github.com/andersgb1/pcl

Conflicts:
	filters/include/pcl/filters/impl/normal_refinement.hpp
	filters/include/pcl/filters/normal_refinement.h