Modify typescript d.ts

[xygahs0801]

it can be used as:
import arangojs = require("arangojs");
let db = arangojs(http://${host}:${port});
db.useDatabase(database);
db.useBasicAuth(username, password);

[TimMensch]

It looks like this would break the standard/modern TypeScript/ES6 usage pattern of:

import { Database } from "arangojs";

const db = new Database({ name: "mydb" });
// ...

You should be able to add the arangojs() default function export without killing the ability to import the individual classes. This pull request makes the type definitions worse.