Merged changes from develop in sussman redistancing into master.

...level_set/redistancing_Sussman/tests/convergence_test.cpp

src/level_set/redistancing_Sussman/tests/l_norms/LNorms.hpp

...l_set/redistancing_Sussman/tests/narrowBand_unit_test.cpp

...istancing_Sussman/tests/redistancingSussman_unit_test.cpp

...istancing_Sussman/tests/single_point_convergence_test.cpp

src/level_set/redistancing_Sussman/tests/test.cpp