Transaction matching case sensitivity

[Gregg Nemas]

The function split_find_match() in import-backend.c scores
transactions according to comparisons of amount, date, description,
etc.

I noticed that the comparison of the description and memo fields is
case-sensitive.

This means that my supermarket entries that have descriptions "Giant
Food" do not match the downloaded descriptions "GIANT FOOD".

This applies to both the exact and the 50% match cases, and for both
the memo and the description fields.

Can this be changed?

Thanks,

Gregg