Nyall Dawson 220c5e85e3 Move GeoNode browser/source select from app -> new 'geonode' provider
Instead of including these classes in app, we instead make a
shell data provider which implements only the dataItemProviders()
and sourceSelectProviders() methods.

Helps keep GeoNode GUI related code partitioned
2017-09-13 05:48:21 +10:00
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