history: repository, model, controller methods

src/main/java/application/Constants.java

@@ -0,0 +1,10 @@
+package application;
+
+/**
+ * Created by Marcin on 2015-01-16.
+ */
+public final class Constants {
+    public static final boolean SUCCESS_TRUE = true;
+    public static final boolean SUCCESS_FALSE = false;
+}
+