[1D] Fixed an indexing error that affected Jacobian evaluations

Not all components of the Jacobian were being computed for the first point in
the first flow Domain. Cherry pick of r2018.

src/oneD/Domain1D.cpp

@@ -102,7 +102,7 @@ eval(size_t jg, doublereal* xg, doublereal* rg,
         jmin = 0;
         jmax = m_points - 1;
     } else {          // evaluate points for Jacobian
-        jmin = std::max<size_t>(jpt-1, 0);
+        jmin = std::max<size_t>(jpt, 1) - 1;
         jmax = std::min(jpt+1,m_points-1);
     }