Fix parameters for the AuthFilter.

Signed-off-by: Jason Lewis <jason.lewis1991@gmail.com>
Update the docblock for the CsrfFilter.

Signed-off-by: Jason Lewis <jason.lewis1991@gmail.com>
Merge pull request #2981 from jasonlewis/fix/auth-csrf-filters

Fix for the Auth filter and docblock stuff for CSRF filter.
Merge branch 'develop' of https://github.com/laravel/laravel