Add lucene-backward-codecs.jar to dependency management - inst cleaner tests failed w/o it.
diff --git a/core/pom.xml b/core/pom.xml
index 200a6af..49486c7 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -331,13 +331,16 @@
         <artifactId>lucene-queryparser</artifactId>
         <version>6.6.5</version>
       </dependency>
-
       <dependency>
         <groupId>org.apache.lucene</groupId>
         <artifactId>lucene-analyzers-common</artifactId>
         <version>6.6.5</version>
       </dependency>
-
+      <dependency>
+         <groupId>org.apache.lucene</groupId>
+	 <artifactId>lucene-backward-codecs</artifactId>
+	 <version>6.6.5</version>
+      </dependency>
       <dependency>
         <groupId>org.apache.lucene</groupId>
         <artifactId>lucene-queryparser</artifactId>
diff --git a/workflow/pom.xml b/workflow/pom.xml
index 5aaa049..99f12df 100644
--- a/workflow/pom.xml
+++ b/workflow/pom.xml
@@ -130,6 +130,10 @@
       <artifactId>lucene-analyzers-common</artifactId>
     </dependency>
     <dependency>
+       <groupId>org.apache.lucene</groupId>
+       <artifactId>lucene-backward-codecs</artifactId>
+    </dependency>
+    <dependency>
       <groupId>org.apache.oodt</groupId>
       <artifactId>cas-cli</artifactId>
     </dependency>