added gems for development
added users controller
added controllers for problems and notes
added resources for users, problems, notes to routes
created basic views
fixed typo in problems controller
merge controllers branch
html for application layout and problems views
began adding erb to views
added foundation
added setup for simple form and initial html; began setting up seed data
added seed data and improved user views
finessing user controller and model
working out login
switched to postgres
fixed user save issue
users can log in, persisted thru current session
added some basic styling and html/erb for forms