not important, but here goes after having postponed it for ages:
1. Graphing the cross-correlogram seems to rely on the ordering of the
variables in the dataset. Could that be made configurable?
2. the "semilog" fitted line option for time-series plots: first why is
it called *semi*, if it's a fitted trend to the log. Also, trying it on
LRM in denmark.gdt there is no difference between linear and this
semilog. (How) Does gretl know that LRM is already in logs?