Create nominee monthly list

* Creates migrations for nominee lists and join table
* Creates model nominee list and the relationship with users
* Updates db schema
Create nominee monthly list

* Creates nominee list controller
* Adds nominee list resource to routes
* Adds link to nominee list creation
* Creates new view for nominee list
Create Nominee monthly list

* Creates nominee list fabricator
* Deletes comments for user fabricator
* Adds specs for nominee list and user models
Create nominee monthly list

* Renamed nominee list controller to nominee lists controller
* Renamed nominee list views
* Changed routes
Create nominee monthly list

* Adds specs for nomine lists controller
* Changes controller macros method to accept users and admins
* Fix broken specs
Create nominee monthly list

* Adds integration test for create nominee list
Add admin authentication for controller
Merge pull request #28 from crowdint/feature/create-nominee-monthly-list

Feature/create nominee monthly list