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

Conflicts:
	pom.xml
Merge branch 'feature/stabilization'
Merge branch 'master' into feature/stabilization
Merge commit '0c060dd86f7ce97dada9098dc18e52d18d5991fa' into HEAD