Wicket Component JAR Metadata

This list of metadata regards this idea:

(Note: Some of these may be duplicates of java or maven meta info... we could omit dups)

Site-URL=http://mycomponents.com/slider
License-Name=Apache 2.0
License-URL=http://mycomponents.com/slider/license.txt
Demo-Package=com.mycomponents.demo
Demo-Component-Class=DemoPanel
Screenshots=http://mycomponents.com/slider/screenshots/1.jpg,http://mycomponents.com/slider/screenshots/2.jpg,...
API-Package-List=com.mycomponents.*
Wicket-Minimum-Version=1.3
Feature-List=Feature1,Feature2,...
Search-Keywords=Keyword1,Keyword2,...

What else?

Should this be XML for better structure instead of using META-INF?

OSGi:
Some of the properties above would be better represented by OSGi (if you still want to use that)

import-package: org.wicket;version=1.3.3 (instead of Wicket-Minimum-Version)
export-package: com.mycomponent.demo <- by convention, look for 'DemoApplication' : WebApplication here
bundle-version: 0.1.1