tgriesser/bookshelf — pull request #477 by matyo91 (2014-09-04 15:41:22+00:00)
Title: allow bookshelf assign knex instance

After bookshelf instanciation with require, we can dynamically pass another knex instance to bookshelf.

```
var knex = require('knex')({...});
var bookshelf = require('bookshelf')(knex);

knex = require('knex')({...});
bookshelf.knex = knex;
```