5.24.0

New: Added Checkstyle 8.14, 8.16 (#420).
New: Several versions of Checkstyle that have no reported compatibility options with newer versions have been dropped so as to reduce plugin size.
Fixed: The plugin should now build & run on JDK 11.
Fixed: We now handle exclamation marks in JAR paths (#412).
Fixed: Rules files are more consistently cached in memory to hopefully alleviate Windows file-locking issues (#417).
Fixed: New version dialogue display is now tracked at application level (#415).