Added migration timer

diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.common/src/org/eclipse/app4mc/amalthea/converters/common/MigrationProcessor.java b/plugins/org.eclipse.app4mc.amalthea.converters.common/src/org/eclipse/app4mc/amalthea/converters/common/MigrationProcessor.java
index 0357fae..22f5a56 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.common/src/org/eclipse/app4mc/amalthea/converters/common/MigrationProcessor.java
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.common/src/org/eclipse/app4mc/amalthea/converters/common/MigrationProcessor.java

@@ -131,6 +131,8 @@
 
 				logger.info("=========== START: Migrating AMALTHEA models from : {0} to {1} ========== ", currentModelVersion, outputModelVersion);
 
+				long startTime = System.nanoTime();
+
 				// build caches
 
 				// build up the cache for the current file set
@@ -153,6 +155,9 @@
 					postProcessor.process(fileDocumentMapping);
 				}
 
+				float elapsedTime = (System.nanoTime() - startTime) / 1000000000; // in seconds
+				logger.info("Migration took {0,number,#.###} seconds", elapsedTime);
+
 				logger.info("=========== END: Migrating AMALTHEA models from : {0} to {1}  =========== \n\r", currentModelVersion, outputModelVersion);
 
 				if (currentModelVersion.equals(outputModelVersion)) {