Fix a handful of compiler warnings

These are worth fixing because they're in header files that are always included
(rather than just hitting them at OpenMM compile-time). The SWIG interface now
builds without warnings on my machine.

plugins/amoeba/openmmapi/include/openmm/AmoebaMultipoleForce.h

@@ -415,8 +415,8 @@ public:
 
     MultipoleInfo(double charge, const std::vector<double>& inputMolecularDipole, const std::vector<double>& inputMolecularQuadrupole,
                    int axisType, int multipoleAtomZ, int multipoleAtomX, int multipoleAtomY, double thole, double dampingFactor, double polarity) :
-        charge(charge), axisType(axisType), multipoleAtomZ(multipoleAtomZ), multipoleAtomX(multipoleAtomX), multipoleAtomY(multipoleAtomY),
-        thole(thole), dampingFactor(dampingFactor), polarity(polarity) {
+        axisType(axisType), multipoleAtomZ(multipoleAtomZ), multipoleAtomX(multipoleAtomX), multipoleAtomY(multipoleAtomY),
+        charge(charge), thole(thole), dampingFactor(dampingFactor), polarity(polarity) {
 
        covalentInfo.resize(CovalentEnd);
 

plugins/amoeba/openmmapi/include/openmm/AmoebaTorsionTorsionForce.h

@@ -172,7 +172,7 @@ public:
     }
     TorsionTorsionInfo(int particle1, int particle2, int particle3, int particle4, int particle5, int chiralCheckAtomIndex, int gridIndex) :
                        particle1(particle1), particle2(particle2), particle3(particle3),
-                       particle4(particle4), particle5(particle5), gridIndex(gridIndex), chiralCheckAtomIndex(chiralCheckAtomIndex) {
+                       particle4(particle4), particle5(particle5), chiralCheckAtomIndex(chiralCheckAtomIndex), gridIndex(gridIndex) {
 
     }
 };

plugins/amoeba/openmmapi/include/openmm/AmoebaVdwForce.h

@@ -253,7 +253,7 @@ public:
         epsilon              = 0.0;
     }
     VdwInfo(int parentIndex, double sigma, double epsilon, double reductionFactor) :
-        parentIndex(parentIndex), sigma(sigma), epsilon(epsilon), reductionFactor(reductionFactor)  {
+        parentIndex(parentIndex), reductionFactor(reductionFactor), sigma(sigma), epsilon(epsilon)  {
     }
 };