the .str().c_str() trick

[Lars Gullik Bjønnes]

Is the .str().c_str() trick needed anymore?

It seems that we have just plain .str() several places in the code and
have not got any failure reports about this yet?

Unless I get objections I will change .str().c_str() into just .str()
where approp. (if objections we should change .str() to str.().c_str()
to be safe)

        Lgb