Merge branch 'release/0.2.0' into production
Fix NuGet package references
Fix version number
Merge branch 'hotfix/0.2.0.1'
Implement bit array-like keys on FeatureSwitchboard to remove 64 switch limit.

I originally tried using the BitArray class for this, but it doesn't implement
Equals() and GetHashCode() so it's no good as a key for hashtables. Shame...