Clean up and add comments

Author: Sigmonia

server/configs/application.properties

@@ -159,8 +159,9 @@ csp.report=\
 
 ## Use a custom logging configuration
 #logging.config=path/to/alternative/log4j2.xml
-#logging.config=classpath:01.log4j2.xml
-#logging.log4j2.config.override=${LABKEY_HOME}/01.log4j2.xml
+
+## Alternative method to override Log4J2 with a composite configuration, later in the list overrides any shared nodes
+#logging.log4j2.config.override=classpath:config/00.log4j2.xml,classpath:config/01.log4j2.xml
 
 ## File-based Tomcat HTTP access logs are enabled by default and use our recommended pattern. Override as needed.
 #server.tomcat.accesslog.enabled=false

server/configs/webapps/embedded/config/application.properties

@@ -92,8 +92,9 @@ mail.smtpUser=Anonymous
 
 ## Use a custom logging configuration
 #logging.config=labkeywebapp/WEB-INF/classes/log4j2.xml
-#logging.config=classpath:01.log4j2.xml
-#logging.log4j2.config.override=${LABKEY_HOME}/01.log4j2.xml
+
+## Alternative method to override Log4J2 with a composite configuration, later in the list overrides any shared nodes
+#logging.log4j2.config.override=classpath:config/00.log4j2.xml,classpath:config/01.log4j2.xml
 
 ## Enable tomcat access log
 #server.tomcat.accesslog.enabled=true

server/embedded/src/org/labkey/embedded/LabKeySpringBootClassLoader.java

@@ -3,8 +3,6 @@
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.labkey.bootstrap.LabKeyBootstrapClassLoader;
-import org.springframework.core.io.Resource;
-import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
 
 import java.io.IOException;
 import java.io.InputStream;