Latest version of net.sf.proguard:proguard-base
https://javadoc.io/doc/net.sf.proguard/proguard-base
Current version 6.1.1
https://javadoc.io/doc/net.sf.proguard/proguard-base/6.1.1
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/net.sf.proguard/proguard-base/6.1.1/package-list