EZP-20424 - Refactored ViewProvider mechanism to take advantage of it for page blocks
EZP-20424 - Added matchers for block views
EZP-20424 - Added compiler pass to register block view providers
EZP-20424 - Fixed legacy content/location view providers after refactoring
EZP-20424 - Added bundle level block view provider
EZP-20424 - Added service container configuration for content view provider