feature #435 By default redirect to post index page after login (yceruto, javiereguiluz)

This PR was merged into the master branch.

Discussion
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By default redirect to post index page after login

This PR change the default target path `/` to <del>`admin_index`</del> `blog_index` route, useful when we access to login page directly (i.e. through URL).

Commits
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09e2c64 Improved the help note
283d838 Expanded the help note about default_target_path
0b753ab By default redirect to post index page after login

Author: javiereguiluz

app/config/security.yml

@@ -32,6 +32,9 @@ security:
                 # Secure the login form against CSRF
                 # Reference: http://symfony.com/doc/current/cookbook/security/csrf_in_login_form.html
                 csrf_token_generator: security.csrf.token_manager
+                # The page users are redirect to when there is no previous page stored in the
+                # session (for example when the users access directly to the login page).
+                default_target_path: blog_index
 
             logout:
                 # The route name the user can go to in order to logout