Use current SNAPSHOTs for kernel, core, ws, jcr, gatein
SWF-2923 : Create pkg-improv branch and update projects versions
Use maven-parent-pom 13-SNAPSHOT
Jaxen was a JDom dependency for version before 1.1.3
Its removal may create some issues for components requiring it
PLF-5900 : Use EXOGTN for eXo Platform Community
PLF-5684 : Declare the source release package used to bundle all PLF sources
Use maven-parent-pom 13