Changed the build process it generates a devel and a prod version

of the source, added some screenshots and a sample printout, couple
bugfixes.

js/confirm.js

@@ -0,0 +1,21 @@
+
+function confirminit() {
+    window.onbeforeunload = function(e) {
+	if(window.confirmExit) return confirmExit();
+    };
+}
+
+var hadConfirmExit = false;
+function checkUnsavedChanges() {
+    if(App.store && App.store.isDirty && window.hadConfirmExit === false) {
+        if(confirm("unsafed changes"))
+            saveChanges();
+    }
+}
+
+function confirmExit() {
+    hadConfirmExit = true;
+    if(App.store && App.store.isDirty) {
+        return "ok";
+    }
+}