move site to top module

git-svn-id: https://svn.apache.org/repos/asf/maven/jxr/trunk@1438706 13f79535-47bb-0310-9956-ffa450edef68
remove inherited configuration

git-svn-id: https://svn.apache.org/repos/asf/maven/jxr/trunk@1438707 13f79535-47bb-0310-9956-ffa450edef68
jxr-plugin has now jxr parent as parent.

git-svn-id: https://svn.apache.org/repos/asf/maven/jxr/trunk@1438708 13f79535-47bb-0310-9956-ffa450edef68
fix ci url

git-svn-id: https://svn.apache.org/repos/asf/maven/jxr/trunk@1438709 13f79535-47bb-0310-9956-ffa450edef68