Fixed YAML code blocks in the book

Author: wouterj

book/propel.rst

@@ -55,10 +55,10 @@ configuration file (``config.yml``):
 
     propel:
         dbal:
-            driver:     "%database_driver%"
-            user:       "%database_user%"
-            password:   "%database_password%"
-            dsn:        "%database_driver%:host=%database_host%;dbname=%database_name%;charset=%database_charset%"
+            driver:   "%database_driver%"
+            user:     "%database_user%"
+            password: "%database_password%"
+            dsn:      "%database_driver%:host=%database_host%;dbname=%database_name%;charset=%database_charset%"
 
 Now that Propel knows about your database, Symfony2 can create the database for
 you:

book/security.rst

@@ -45,7 +45,7 @@ authentication (i.e. the old-school username/password box):
         security:
             firewalls:
                 secured_area:
-                    pattern:    ^/
+                    pattern:   ^/
                     anonymous: ~
                     http_basic:
                         realm: "Secured Demo Area"
@@ -300,11 +300,11 @@ First, enable form login under your firewall:
         security:
             firewalls:
                 secured_area:
-                    pattern:    ^/
+                    pattern:   ^/
                     anonymous: ~
                     form_login:
-                        login_path:  login
-                        check_path:  login_check
+                        login_path: login
+                        check_path: login_check
 
     .. code-block:: xml
 
@@ -373,10 +373,10 @@ submission (i.e.  ``/login_check``):
 
         # app/config/routing.yml
         login:
-            path:   /login
-            defaults:  { _controller: AcmeSecurityBundle:Security:login }
+            path:     /login
+            defaults: { _controller: AcmeSecurityBundle:Security:login }
         login_check:
-            path:   /login_check
+            path: /login_check
 
     .. code-block:: xml
 
@@ -637,8 +637,8 @@ see :doc:`/cookbook/security/form_login`.
 
             firewalls:
                 login_firewall:
-                    pattern:    ^/login$
-                    anonymous:  ~
+                    pattern:   ^/login$
+                    anonymous: ~
                 secured_area:
                     pattern:    ^/
                     form_login: ~
@@ -1094,13 +1094,14 @@ aren't stored anywhere in a database. The actual user object is provided
 by Symfony (:class:`Symfony\\Component\\Security\\Core\\User\\User`).
 
 .. tip::
+
     Any user provider can load users directly from configuration by specifying
     the ``users`` configuration parameter and listing the users beneath it.
 
 .. caution::
 
     If your username is completely numeric (e.g. ``77``) or contains a dash
-    (e.g. ``user-name``), you should use that alternative syntax when specifying
+    (e.g. ``user-name``), you should use an alternative syntax when specifying
     users in YAML:
 
     .. code-block:: yaml

book/translation.rst

@@ -452,8 +452,8 @@ by the routing system using the special ``_locale`` parameter:
     .. code-block:: yaml
 
         contact:
-            path:      /{_locale}/contact
-            defaults:  { _controller: AcmeDemoBundle:Contact:index, _locale: en }
+            path:     /{_locale}/contact
+            defaults: { _controller: AcmeDemoBundle:Contact:index, _locale: en }
             requirements:
                 _locale: en|fr|de