Add command to the CLI to import entities into the store

![qcli](https://cloud.githubusercontent.com/assets/146040/3633474/5612500a-0ee4-11e4-9c1c-427e237ae1e1.jpg)

Rough version. Still needs continuation support, deal with properties, report errors and allow setting the batch size. Will get to all these things (and probably more) in follow ups.
Sure. Mainly meant for myself, and to indicate this thing will get follow ups. The comment will go in my next commit, it will not stick around forever like many todos in WB.git.