Promoted Builds 3.3

🚀 New features and improvements

• JENKINS-14169, JENKINS-23977, JENKINS-25526, JENKINS-43656 - Add support of build wrappers in promotions. All standard Build Wrappers can be now configured in promotion jobs (#123) @patrickschlebusch
• Make Maven Integration Plugin dependency optional (#122) @FarmGeek4Life
• JENKINS-47207 - Show username in the job promotion info (#121) @dernDren161
• Sort last promotions list chronologically descending like the regular build history (#120) @sven-carstens
• Allow expanding and collapsing the promotion history pane (#119) @sven-carstens

📝 Documentation updates

• Cleanup README, detach CONTRIBUTING.md and add shields (#138) @oleg-nenashev
• Add Gitter chats for the plugin (#130) @dernDren161
• Move changelogs to GitHub releases

📦 Dependency updates

• Update Jenkins Core requirement to 2.138.4, use the modern Parent POM (#124) @oleg-nenashev

🚦 Internal changes

• Add Pull request template (#133) @oleg-nenashev