Clean pom.xml

Bumped up versions

Merge branch 'master' of https://github.com/wonlay/zoie into release

upgraded version

release 3.0.0

fixed compilation error with solr plugin

increase version to 2.5.2

added gpg profile

fix ivy to load solr jars. misc cleanup

commit point for 2.5.0 release