Merge branch 'release/0.3.0'
Force matching versions in NuGet packages
View registry should be scoped to the feature set, not as a singleton.

Otherwise it comes from the application-level container, which has no record of
the view engines, as they're all registered in the feature set's child container
Bump version 0.3.0-alpha1
Merge branch 'release/0.3.0.1' into production