Merge pull request #953 from ontodev/elk-log4j

Exclude log4j from elk import, drop redundant logback.xml

CHANGELOG.md

@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+- Replace `log4j` with `logback` [#948] [#953]
+
 ### Fixed
 - Fix custom [`report`] queries [#944]
 - Fix methods in `Report` object for ROBOT as a library [#951]
@@ -287,7 +290,9 @@ First official release of ROBOT!
 [`template`]: http://robot.obolibrary.org/template
 [`validate`]: http://robot.obolibrary.org/validate
 
+[#953]: https://github.com/ontodev/robot/pull/953
 [#951]: https://github.com/ontodev/robot/pull/951
+[#948]: https://github.com/ontodev/robot/pull/948
 [#944]: https://github.com/ontodev/robot/pull/944
 [#938]: https://github.com/ontodev/robot/pull/938
 [#929]: https://github.com/ontodev/robot/pull/929

pom.xml

@@ -211,16 +211,8 @@
       <version>0.4.3</version>
       <exclusions>
         <exclusion>
-          <groupId>org.slf4j</groupId>
-          <artifactId>slf4j-log4j12</artifactId>
-        </exclusion>
-        <exclusion>
-          <groupId>org.slf4j</groupId>
-          <artifactId>slf4j-api</artifactId>
-        </exclusion>
-        <exclusion>
-          <groupId>org.slf4j</groupId>
-          <artifactId>slf4j-simple</artifactId>
+          <groupId>log4j</groupId>
+          <artifactId>log4j</artifactId>
         </exclusion>
         <exclusion>
           <groupId>net.sourceforge.owlapi</groupId>