Property -Dorg.apache.el.parser.SKIP_IDENTIFIER_CHECK=true seems not working

After installing tomcat we need to configure
`JAVA_OPTS="$JAVA_OPTS -Dorg.apache.el.parser.SKIP_IDENTIFIER_CHECK=true"`
to allow the template page working properly.
The configuration [here](https://github.com/intermine/docker-intermine-gradle/blob/master/tomcat/tomcat.Dockerfile#L7) seems correct and
`docker exec intermine_tomcat echo "$JAVA_OPTS"`
return
` -Dorg.apache.el.parser.SKIP_IDENTIFIER_CHECK=true`
which is correct BUT the template page (and the query builder constraint popup) do not work (empty page) and in the log we have the javax.el.ELException.

Start with tomcat/tomcat.Dockerfile at line 7 and verify how JAVA_OPTS is passed into the running container. Reproduce the template page and query builder constraint popup, then inspect the javax.el.ELException details in the log. Done means both pages render and the related exception no longer occurs.

Written by the indexing model from the issue text.