Guidepost

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1.22: massive rewrite, nothing new
1.21: fix mising library causing crash
1.20: pictures, clustering
1.19: camera invocation from the app, location, menu, bubbles
1.18: new ui, new map, new staticmap, map needs to cache its data on the storage, allow write permission please.
1.17: android 6+ permissions
1.16: server url update, targetsdk changed per google request