Add molarmass backwards compatibility alias

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
Get reducing state works properly - now virtual

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
Maxwell routine stops if the steps get small

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
Fix testing of Matlab wrappers hopefully

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>