user controller test
added link table for user and group
added relation between user and movie, between group and user
rake db:migrate for schema
final model setup with migrations
group spec
removed listgroup spec, added test for Group.name
added user_spec.rb
added presence_of for email and password tests, modified user model
added uniquness test for email under User
fixed User model for has_many groups test
edit list, add user spec for has_many lists
Merge pull request #8 from meidlin/samantha

Samantha
edits
added has_many to lists, user has_many lists, add user_id to list
add some tests for user and session controller
made email requirement for a@a.com
added test for creating user
added tests for user/list relation, user/group relation
changed nothing