created activerecord::base and migration files for all er schema
fixed name of files to succesfully execute migration
Added sign up form
Sign up, login, authenticate

Sign up kinda finished
Login bar modified
Authenticate method implemented

Still need to create sessions and tie authenticate to login bar
login and sessions implemented
user modification complete

added all functionality for user edits/updates/destroys
seguridad en controller user y cambios a barra para admin