[config] - update GN georchestra overrides config
removed useless config-override-georchestra.xml
removed useless replaces in defaults geonetwork config-overrides-georchestra
updated template config
Merge remote-tracking branch 'origin/master'
Update GN submodule
config readme minor cleanup
generate config should check subTarget value
default shared.default.log.level set to WARN
Create Readme.md

Provide a brief description of the purpose of these linux deploy scripts.
Fixed number list in readme
added geonetwork defaults codelist dir
revert previous commit - this belongs to GN data dir
fixed missing log4j.logger.geonetwork.spatial

this prevented the SettingManager to take into account new values when using geonetwork/srv/fre/config
extractorapp misses language var in properties file
extractorapp default maven.filter updated
useless emailFactory property removed
removed extractorapp.properties + added ws-servlet.xml in filtered-resources
fixed typo priveleged -> privileged
updated template config