Extracted document adaptation into DocumentAdapter.

Documents created by Meteor are a bit different from those created by
MongoLab. Meteor creates them with a simple random String _id, while
MongoLab creates and ObjectID(). This class aims to mitigate those
differences.
Removed console.logs
toLocaleString() renders a pretty enough date.
All .table-hover should behave the same way.
Added Packages.