Latest version of com.vaadin:vaadin
https://javadoc.io/doc/com.vaadin/vaadin
Current version 6.8.1
https://javadoc.io/doc/com.vaadin/vaadin/6.8.1
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/com.vaadin/vaadin/6.8.1/package-list