Change package to org.apache.commons.jcs, groupId to org.apache.commons, artifactId to commons-jcs and version to 2.0-SNAPSHOT

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/jcs/trunk@1517295 13f79535-47bb-0310-9956-ffa450edef68
Change package to org.apache.commons.jcs, groupId to org.apache.commons, artifactId to commons-jcs and version to 2.0-SNAPSHOT

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/jcs/trunk@1517296 13f79535-47bb-0310-9956-ffa450edef68