- moved QgsVectorLayer::SimplifyHint enum to QgsVectorSimplifyMethod
- use QFlags instead of int for hints
- added few notes about simplification being added in 2.2
Vector data provider now has getFeatures() method to access features.
select(), nextFeature(), featureAtId(), rewind() were removed resp. moved to provider's feature iterator implementations.
Providers that currently do not implement the new API were disabled.