Replace clog with cout because clog is not used anywhere else in the repo. Do not display "couldn't find file" message if _debugLevel==0.
Replace clog with cout because clog is not used anywhere else in the repo. Do not display "couldn't find file" message if _debugLevel==0.

opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core