google_directions(); Valid names for waypoints list

[jonocarroll]

In google_directions(), while it is already noted that lists with elements named via will be processed as non-stopping waypoints, it took hunting through the source code to realise that they need to be named "" (explicitly empty character) to be used otherwise. You have fatal testing for this in-place, but it's not documented.

Given that you explicitly write the via: prefix anyway, I'd like to suggest adding stop to the list of valid names in your package, which can then be left out from the actual API call.

[SymbolixAU]

Good spot. I'll add a fix for the next release.