v1.2.1142

• Make properties public in top-level library API
• Add match-locale to top-level library API for when consumers need to parse
  the same language preferences for a number of separate calls
• Add /v1/snomed/concepts/:concept-id/properties endpoint to HTTP API with
  configuration options for pretty printing for human users, and expand for machine users
• Improve handling of invalid parameters in HTTP API
• Improve documentation, including links to live examples

Full Changelog: v1.2.1115...v1.2.1142