Plone.formwidget.geolocation

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- Fix popup displaying the string "None" when no description was given.
[parruc]

- Add default_location information to maps-configuration view.
[bsuttor]

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- Translate map ids.
[thet]

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- add geolocation settings for leaflet
[petschki]

- Fix for Python 3.
[pbauer]

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- Only include the leaflet bundle where it is needed via ``add_bundle_on_request``.
[thet]

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- Explicitly include necessary zcml dependencies to avoid having to explicitly doing that in tests.
plone.app.testing disables z3c.autoinclude.
[thet]

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- Add upgrade step for changes in 2.1 + register missing upgrade steps for Plone 5 migration.
[thet]