Offline Version: Latest Enhancements

[PaulHeggarty]

New issue for a clean list of outstanding tasks for the offline version:

• For the Mapudungun study, the zoom level cuts out a bit too early, before there's much actual geographical data like placenames. So could we go one or two levels further, for the relevant region of Patagonia? I.e. download/create the map tiles at this deeper zoom level, just for the Mapudungun region.

• Complete implementation of the choice of two map types for the offline version, i.e. the new, excellent coloured ones created by @Bibiko, but also the old plain OpenStreetMap ones with more detail.

• The Offline folder and zipped mapnik files placed on OwnCloud should best be named with the date in 2018 01 01 format, so that we can be sure which version we have. (Obviously, they need renaming before unzipping on anyone's laptop.)

• Unzipping / copying onto SD cards or USB sticks can create problems because Windows overestimates the 'space needed on disk'. I couldn’t copy the map folders to an SD card even with 32 GB free. Any ideas?