Support both Taverna 2.5 and 3.1 command line folder

as Taverna 3 uses "taverna-command-line" folder name
diff --git a/taverna-server-webapp/src/main/java/org/taverna/server/master/localworker/LocalWorkerState.java b/taverna-server-webapp/src/main/java/org/taverna/server/master/localworker/LocalWorkerState.java
index e5bb938..8ca05cc 100644
--- a/taverna-server-webapp/src/main/java/org/taverna/server/master/localworker/LocalWorkerState.java
+++ b/taverna-server-webapp/src/main/java/org/taverna/server/master/localworker/LocalWorkerState.java
@@ -210,7 +210,9 @@
 		File[] dirs = utilDir.listFiles(new FilenameFilter() {
 			@Override
 			public boolean accept(File dir, String name) {
-				return name.startsWith("taverna-commandline-");
+				// Support both taverna-commandline* (2.5) and
+				// taverna-command-line* (3.1)
+				return name.startsWith("taverna-command");
 			}
 		});
 		assert dirs.length > 0;
@@ -464,4 +466,4 @@
 
 		loadedState = true;
 	}
-}
\ No newline at end of file
+}