PLF-4468 :
* Remove externalized configuration for exo.conf.dir, gatein.conf.dir, exo.conf.dir.name
* Cleanup logs config
PLF-4795 : incorrect refer to the CATALINA variables
All logs, extensions and config files must reference catalina base
All system/plf stuff catalina home
PLF-4468 : Cleanup paths configuration (local vs cluster)
PLF-4468 : Reorganize configuration.properties content order
PLF-4635 : Allow to configure the root directory of data using the env var EXO_DATA_DIR
PLF-4635 : --data PATH option for .sh script
PLF-4635 : --data PATH option for .bat script
PLF-4468 : Allow JVM props to configure SMTP