Latest version of org.webjars.npm:bootstrap
https://javadoc.io/doc/org.webjars.npm/bootstrap
Current version 4.0.0-alpha.2
https://javadoc.io/doc/org.webjars.npm/bootstrap/4.0.0-alpha.2
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.webjars.npm/bootstrap/4.0.0-alpha.2/package-list