Account creation

[marcandregirard]

At the moment, there is only one account creation possible (Facebook) and once the account is created, you're automatically sign in and redirected to the home page (root).

We need to insert a new step to this, creating the player and a hero (if possible). The new step would be create the user registration with Devise and the redirect to the player creation page. We will need to handle the player creation, hero creation and you should be able to logout without finishing the creation. The next login should redirect you to the creation.

[marcandregirard]

At the moment I fix #26 to allow and I redirect if the player does not exist. I added some placeholder text and we now create the player on a default MapPoint. If you sign in and you don't have player you'll be redirected to creation of a player. I don't know if there is anything more I need to do for now.