refactor app directory structure and add tests

tests/nightwatch.json

@@ -0,0 +1,38 @@
+{
+	"src_folders" : ["tests"],
+	"output_folder" : "reports",
+	"custom_commands_path" : "",
+	"custom_assertions_path" : "",
+	"page_objects_path" : "",
+	"globals_path" : "",
+
+	"selenium" : {
+		"start_process" : true,
+		"server_path" : "selenium/selenium-server-standalone-2.53.1.jar",
+		"log_path" : "",
+		"host" : "127.0.0.1",
+		"port" : 4987,
+		"cli_args" : {
+			"webdriver.chrome.driver" : "",
+			"webdriver.ie.driver" : ""
+		}
+	},
+
+	"test_settings" : {
+		"default" : {
+			"launch_url" : "file:///home/s2/Documents/Code/eclipse%20workspace/tasks/app/index.html",
+			"selenium_port"	: 4987,
+			"selenium_host"	: "localhost",
+			"silent": true,
+			"screenshots" : {
+				"enabled" : true,
+				"path" : "screenshots"
+			},
+			"desiredCapabilities": {
+				"browserName": "firefox",
+				"javascriptEnabled": true,
+				"acceptSslCerts": true
+			}
+		}
+	}
+}