signup form visible on homepage
new spec for new user
establish activerecord connection, create users migration
user successfully added to db
validate name and email
validates email presence
add username column, add username specs
add column usernames migration
post method and route on form
remove username from users, add password, update specs, all pass'
User can be added to the database
add default unavailable to users status
no duplicate users
Merge pull request #4 from JonathanTR/user_signup

User signup feature adds users