fix to keeping 2.4.4 version

package.json

@@ -30,7 +30,8 @@
     "form-backend-validation": "^2.0.1",
     "lodash": "^4.17.4",
     "moment": "^2.19.1",
-    "vue": "^2.4.4",
+    "vue": "~2.4.4",
+    "vue-template-compiler": "~2.4.4",
     "vue-data-tables": "^2.0.4",
     "vue-events": "^3.0.1",
     "vue-i18n": "^7.3.1",