v2.2.0

Feature

• Note that this is now based on the R25 schema (6cb821b)

Fix

• Quiet linter warnings (6c3f5ce)
• Ensure SearchCriteria are not seen as Requests (6a9c35e)

Documentation

• Update README for recent changes (7cb3354)
• Mention the Null object - its important (2f1e047)