0.19.1

• with-named-sub-schemas takes an optional parameter - prefix for schema names
• Schema-names are now generated as String instead of Keywords in the swagger-json 2.0
• uses [metosin/schema-tools "0.3.0] to walk over Schema records both to fetch schema names and give names to subschemas (Swagger 2.0 only)
  • see tests - in the end of the file

[lein-ring "0.9.3"] is available but we use "0.9.2"