In soft mode G doesn't go to the last "soft line"

[Ryan Jenkins]

Some magic has been done on j/k so they move up and down within a wrapped line. That's awesome! G however will take you to the start of the last numbered line in the file, while I was expecting it to take me to the last "soft line" by analogy to j/k.

[Caleb Maclennan]

See also notes in #83 about inconsistencies in these keys. I fixed a few missing g- variants in #82, but this wasn't one of them and will likely require some special attention.