fixes exclude fields on populate
Exclude simplification
More exclude work
Merge pull request #23 from fetrarij/master

Add ability to find from list of array, using 'in' on mongoose
* updated contributors
* release 0.4.1
Adds permission and access system
Cleans up option initialization
Read me update
Merge pull request #24 from jamplify/master

Permissions and access system
* release 0.5.0