Generate Changelog.md

Tool used

We currrently use https://github.com/spyder-ide/loghub to generate our changelog

Command to use

loghub TooTallNate/Java-WebSocket --label-group "Breaking changes" "Breaking Changes" --label-group "Bug" "Bugs Fixed" --label-group "New Feature" "New Features" --label-group "Refactor" "Refactoring" --milestone "Release <Milestone-Release>" --token <Token>