yitomok

@monk8800 What version of Mongoose you using? The mongoose-version published on npm doesn't have the latest updates, it won't work with Mongoose 4+, you need the latest source from git....

#22 This should fix the problem, thanks a lot @saintedlama!

@mateusbadalotti You should set the `collection` option if you would versioning for more than one schemas. For example: `configsSchema.plugin(versioner, { collection: 'configs_versions' })`