Changes
Emmanuel Venisse
Make template compatible with changelog 1.8 plugin
Use maven.changelog.range instead of maven.activity.range.
Add maven.changelog.basedir property.
Fix url generation when pom.repository.url isn't empty.
Add xml declaration to generated report. Fixed for character encoding.
Fixed MAVEN-493. I register reports only if source, test,... exists. So, corresponding entrys in menu will appear only if reports are registered.