Merge tag 'v0.0.4'

0.0.4
Move helpers to lib
Remove beforeEach.withDefaultDataSource
Remove describe.model
Factor out LoopBack dep to removing coupling on the exact loopback instance.
Relax loopback dependency
Merge pull request #9 from strongloop/refactor/loopback-dep

Refactor/loopback dep
0.1.0