Use runtime scope for slf4j impl to keep compile classpath leaner
diff --git a/pom.xml b/pom.xml
index 496a33c..6153e5a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -257,7 +257,7 @@
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-simple</artifactId>
-            <scope>compile</scope>
+            <scope>runtime</scope>
         </dependency>
         <dependency>
             <groupId>org.apache.sling</groupId>