moved all sources to src directory

src/services/app_info.js

@@ -0,0 +1,13 @@
+"use strict";
+
+const build = require('./build');
+const packageJson = require('../../package');
+
+const APP_DB_VERSION = 71;
+
+module.exports = {
+    app_version: packageJson.version,
+    db_version: APP_DB_VERSION,
+    build_date: build.build_date,
+    build_revision: build.build_revision
+};