switched nedb to nedb-promises (#37)

* breaking change: switched to nedb-promises
* Linting
* some dev dependencies
* more tests
* updated package version
* bug fixing
* changed isNaN to isString
* (fix) args[0]

functions/findMessage.js

@@ -1,7 +1,7 @@
-const globals = require('../globals');
+const { Replies } = require('../globals');
 
-const findMessage = (value) => {
-    return globals.Replies.find(r => r.id === value).string;
+const findMessage = value => {
+    return Replies.find(r => r.id === value).string;
 };
 
-module.exports = { findMessage };
+module.exports = { findMessage };