Update translations
Update imagery
1.6.1
Write presets and imagery to standalone files
Select first available imagery layer
Moved area-keys to data, and process it during runtime
Add tests and documentation for custom presets
Simplify and improve documentation of areaKeys
missing memo argument (fixes #2421)
Add test for #2421
Make taginfo configurable and default to disabling taginfo related features
Document deployment customization
Incorporate Slide Tool (http://labs.strava.com/slide)
Fix connection disconnect issue.

https://github.com/openstreetmap/iD/issues/2326