Consider use MongoDB and NeDB

[kis87988]

We currently don't have any data storage database.

Personally, I consider use MongoDB, but sometimes if we only run on the fly.
We may not have MongoDB server ready.
Therefore, we should have a solution similar to SQLlite.

A MongoDB SQLlite version is NeDB.

Our application should work with Both MongoDB and NeDB.

Therefore, consider to create a abstract database class work both of DB, and then we have both bot to DB driver for both type of DB.

NeDB: https://github.com/louischatriot/nedb

[xinbenlv]

That's f**king awesome~

[xinbenlv]

forking, I mean