Merge pull request #208 from dillontkh/Release-1.2.1

Update version to 1.2.1 for trial JAR

src/main/java/seedu/address/MainApp.java

@@ -36,7 +36,7 @@
  */
 public class MainApp extends Application {
 
-    public static final Version VERSION = new Version(1, 2, 0, true);
+    public static final Version VERSION = new Version(1, 2, 1, true);
 
     private static final Logger logger = LogsCenter.getLogger(MainApp.class);