Drop an OSM note asking for clarification of imagery

[jameslaneconkling]

could be a good way for users to note issues, uncertainties with editing.

could optionally include a way for users (or advanced users) to browse all notes, resolve what they can, and communicating back to the original posting user.

[jameslaneconkling]

...also could be used to report local knowledge (as requested by Colin of Global Witness/Carter Center).

Looks like there's a pull request waiting to be merged into iD for note functionality: openstreetmap/iD#1895