delete all papers & references before asserting there are 0
add model for citation groups
citation groups should have many references, not papers
add fixtures for papers
Create basic user model
fix test for citation_group creation
Added rake task (app:user:create) to create a new user and api-key
Added User#display
add automated ordering for references in a citation group
do not reinvent the acts_as_list gem
cascade delete citation_groups to citation_group_reference
Install mocha gem
Add authentication code to base API controller
Added authentication to V0 API controller
remove tests for count, which do not work with fixtures
Add AuditLogEntry model
Add audit logging when updating paper's metadata
Updated todo list
Merge pull request #6 from ploslabs/feature/authentication_and_authorization

Feature/authentication and authorization
Merge branch 'master' into feature/citation_groups_model

Conflicts:
	db/schema.rb