Merge pull request #4 from curiousepic/master

More controller tests
users controller test current_user_id undefined error
fixed syntax error in logins controller
fixed merge conflict
with invalid login info renders new form
Merge pull request #5 from curiousepic/master

Problems and Notes controllers working
working users and login with tests. placeholder views
Merge pull request #6 from rlconley/rebecca

Rebecca
Seed data for users, problems, notes
Deleted unnecessary views
Problems index view, filters resolved
Problem show view without note form
Problem and Note forms working aside from user_id assignment