modify code to suppress or fix warnings in gcc and clang (#41)

* first fix to start branch PR

* explicit conversion from sizet to int

* Array.h and DiagonalMatrix.h

* many sizet to int conversions

* removed some unused variables and added expl overrides

* removed many unused parameters

* more typing

* even more

* last of the easy changes

OndselSolver/ASMTForceTorque.cpp

@@ -15,12 +15,12 @@ void MbD::ASMTForceTorque::updateFromMbD()
 	assert(false);
 }
 
-void MbD::ASMTForceTorque::compareResults(AnalysisType type)
+void MbD::ASMTForceTorque::compareResults(AnalysisType)
 {
 	assert(false);
 }
 
-void MbD::ASMTForceTorque::outputResults(AnalysisType type)
+void MbD::ASMTForceTorque::outputResults(AnalysisType)
 {
 	assert(false);
 }