Latest version of org.shredzone.flattr4j:flattr4j-core
https://javadoc.io/doc/org.shredzone.flattr4j/flattr4j-core
Current version 2.11
https://javadoc.io/doc/org.shredzone.flattr4j/flattr4j-core/2.11
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.shredzone.flattr4j/flattr4j-core/2.11/package-list