v4.8.3

• dependency updates
• added <jwtAuth /> interceptor which can verify JWTs
• added <template/> interceptor to fill a body based on a template (using groovy.text.XmlTemplateEngine for .xml templates or groovy.text.StreamingTemplateEngine elsewise)
• added <xpathExtractor/> <jsonPointerExtractor/> interceptors to extract information from bodies (see documentation or examples for further info)
• added <xml2Json/> <json2Xml/> interceptors for format conversions (see documentation or examples for further info)
• started Kubernetes integration (work-in-progress!)
• fixed #341 "Stray Thread hogging CPU after penetration testing with qualys"
• allow specifying a <*UserDataProvider> inside of <basicAuthentication>
• fixed viewing inflight exchanges (some body sizes are still incorrect)
• added exchange time metrics to <prometheus/> interceptor
• improved <elasticSearchExchangeStore/> to enable reading back exchanges (to support the <adminConsole/>)