[x] The system checks if the email address corresponds to an address known by the application. If it doesn't correspond, inform the user the address is unknown and suggest her to create a new account.
[x] If it corresponds, send an email to the user, with an automatic generated code to be informed in a page where the user will gain the right to change his password.
[x] The form to change the password, requests the new password and to confirm it by typing it twice. Then, redirect the user to the login page, so she can try to login with the new password.
[ ] Send an email to the user to confirm the password was changed.
Allow the user to change her password.