AuthLogic UserSession Helper

Bunch of convenience methods for use with AuthLogic and Rails.

Only works if you are using a standard user, and user_session.

Will be able to specify the model(s) names in the future.

Example

Get the current_user from the session
```
current_user
```
Is there a user logged in?
```
user?
```
Is there no user currently logged in?
```
no_user?
```
A user is required! (use as before filter to redirect to ‘/login’)
```
user_required
```
A user cannot be logged in (will redirect to the root_url, whatever that is mapped to)
```
no_user_required
```
If you need to remember what the user was trying to do before you made them login
```
store_location
redirect_back_or_default
```

Adds login_as and logout methods to tests.