PLF-6020 : Don't use "SETLOCAL EnableDelayedExpansion" like introduced to fix PLF-6019. With it CATALINA_OPTS isn't used/visible by Tomcat :(
SWF-2923 : Create pkg-improv branch and update projects versions

Signed-off-by: Arnaud Héritier <aheritier@exoplatform.com>
PLF-5898 : Use the SNAPSHOT version of the add-ons manager