[maven-release-plugin] prepare release org.apache.sling.servlets.post-2.3.20
[maven-release-plugin] prepare release org.apache.sling.servlets.post-2.3.20

git-svn-id: 6eed74fe9a15c8da84b9a8d7f2960c0406113ece@1795910 13f79535-47bb-0310-9956-ffa450edef68

awadheshv/sling,trekawek/sling,anchela/sling,anchela/sling,vladbailescu/sling,vladbailescu/sling,headwirecom/sling,ieb/sling,vladbailescu/sling,tmaret/sling,awadheshv/sling,tmaret/sling,awadheshv/sling,ieb/sling,headwirecom/sling,tmaret/sling,trekawek/sling,tmaret/sling,ist-dresden/sling,anchela/sling,ieb/sling,ieb/sling,awadheshv/sling,anchela/sling,trekawek/sling,awadheshv/sling,vladbailescu/sling,tmaret/sling,ieb/sling,trekawek/sling,ieb/sling,awadheshv/sling,ist-dresden/sling,ist-dresden/sling,headwirecom/sling,trekawek/sling,headwirecom/sling,anchela/sling,ist-dresden/sling,headwirecom/sling,trekawek/sling,vladbailescu/sling,ist-dresden/sling