Added usage of iprestress variable, which is set to 1 when computing prestresses. Simplified criterion for updating stress/body force BC. Removed commented-out code that is no longer needed.
Added usage of iprestress variable, which is set to 1 when computing
prestresses.
Simplified criterion for updating stress/body force BC.
Removed commented-out code that is no longer needed.


geodynamics/lithomop,geodynamics/lithomop,geodynamics/lithomop,geodynamics/lithomop