ARCHE-527 Restore "Freemarker templates in web files should support auto-completion of tags" (ARCHE-446)

(cherry picked from commit 40a56401)

Revert "ARCHE-515 Remove Essentials version from the archetype now Essentials is managed by the release pom"

This reverts commit c24fe79c

(cherry picked from commit 4c6289a3)

Since we use a MdcOrJndiPropertyFilter that matches on 'cms' or 'site' logs, we must
change

<root>
  <level value="warn"/>
  <appender-ref ref="cms"/>
</root>

into

<root>
  <level value="warn"/>
  <appender-ref ref="cms"/>
  <appender-ref ref="site"/>
</root>

to make sure also logging to 'site' is ending up in the hippo-site.log file.

And in all loggers, we can remove the 'additivity' (it doesn't matter, it should
match only one logger via MdcOrJndiPropertyFilter any way) *and* we can remove all
the <appender-ref ref="xyz"/> except for the audit logging which goes to a specific
log file without MdcOrJndiPropertyFilter filter.

This is the exact log4j infra uses for hosting, except that I have added the
filter class="org.onehippo.cms7.logging.log4j.MdcOrJndiPropertyFilter" since in the
web.xml of the cms and site of the archetype we have defined
 <env-entry>
    <env-entry-name>logging/contextName</env-entry-name>
    <env-entry-type>java.lang.String</env-entry-type>
    <env-entry-value>cms</env-entry-value>
 </env-entry>

(or 'site' for the web.xml of the site)

- add the bootstrap-content jar to shared/lib when running Cargo locally
- and also introduce a new 'dist-with-content' profile for creating a distribution with that jar

ARCHE-504: remove example configuration for no longer functional nor needed freemarker LoggerLibrary

ARCHE-16 [forward port master] (as part of CMS-10331) adding Spanish to the list of standard included locales

(cherry picked from commit 5d18671f)

- removing items from dependency section as these are now managed from release pom