KC - VVG.view.MapView  - refactor: handler registration for internal map's events   - now use the new lib.objFromKVPairs() method to construct     listener object from multiple event name / handler pairs  - new: VIZ_DATA_FETCH_STARTED / COMPLETE events & default listeners   - now added to propagate the same events from internal map to     external listeners
KC
- VVG.view.MapView
 - refactor: handler registration for internal map's events
  - now use the new lib.objFromKVPairs() method to construct
    listener object from multiple event name / handler pairs
 - new: VIZ_DATA_FETCH_STARTED / COMPLETE events & default listeners
  - now added to propagate the same events from internal map to
    external listeners
tectronics/versi-ub-vvg,tectronics/versi-ub-vvg,tectronics/versi-ub-vvg,tectronics/versi-ub-vvg,tectronics/versi-ub-vvg