OO-278 fix wrong default value for localization.cache, sample file should...

OO-278 fix wrong default value for localization.cache, sample file should reflect more production than development setup

olat.local.properties.sample

@@ -87,7 +87,7 @@ instance.id=myopenolat
 # for developers set to true - velocity pages are NOT cached
 olat.debug=false
 # for developers set to false - i18n files are not cached
-localization.cache=false
+localization.cache=true
 # path to the source code. Use this together with olat.debug=true in a 
 # development setup. If set properly, velocity templates, i18n files and 
 # static files like CSS will be reloaded from the source code on each request