1.21.0

What's Changed

• Update bundled kojan-xml library to version 1.0.0 by @mizdebsk in #158
• Fix printing logs of failed ant tasks by @mizdebsk in #161
• Fail build on C compiler failure by @mizdebsk in #162
• Add several projects needed to build Maven 4 by @mizdebsk in #163
• Implement Velocity support in MBI Modello tool by @mizdebsk in #164
• Add Maven 4 API by @mizdebsk in #165
• Improve error message for Guice injection errors in Modello tool by @mizdebsk in #166
• Improve usage of class loaders by @mizdebsk in #167
• Build all Maven 4 modules by @mizdebsk in #168
• Use Java ToolProvider for creating JAR files by @mizdebsk in #169
• Add support for compat versions in dist by @mizdebsk in #170
• Switch to XMvn 5 which uses Maven 4 by @mizdebsk in #171

Full Changelog: 1.20.0...1.21.0