bug #1060 Fix broken links (voronkovich)

This PR was squashed before being merged into the master branch (closes #1060).

Discussion
----------

Fix broken links

The Symfony's documentation was greatly updated and many links in the app's source files are broken. I found all broken links and fixed each one of them where it was possible.

I used this command to extract the links from the source code, so I could miss out some of them:
```sh
grep -ERhoe 'https?://[^[:space:]]*\w' src assets config tests templates | sort -u
```

Commits
-------

24eeceb Fix broken links

Author: javiereguiluz

assets/js/admin.js

@@ -6,7 +6,7 @@ import 'bootstrap-tagsinput';
 
 $(function() {
     // Datetime picker initialization.
-    // See http://eonasdan.github.io/bootstrap-datetimepicker/
+    // See https://eonasdan.github.io/bootstrap-datetimepicker/
     $('[data-toggle="datetimepicker"]').datetimepicker({
         icons: {
             time: 'fa fa-clock-o',
@@ -22,7 +22,7 @@ $(function() {
     });
 
     // Bootstrap-tagsinput initialization
-    // http://bootstrap-tagsinput.github.io/bootstrap-tagsinput/examples/
+    // https://bootstrap-tagsinput.github.io/bootstrap-tagsinput/examples/
     var $input = $('input[data-toggle="tagsinput"]');
     if ($input.length) {
         var source = new Bloodhound({

assets/js/doclinks.js

@@ -20,10 +20,10 @@ $(function() {
     // Wraps Symfony's annotations
     var annotations = {
         '@Cache': 'https://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/cache.html',
-        '@Method': 'https://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/routing.html#route-method',
+        '@IsGranted': 'https://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/security.html#isgranted',
         '@ParamConverter': 'https://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/converters.html',
-        '@Route': 'https://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/routing.html#usage',
-        '@Security': 'https://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/security.html'
+        '@Route': 'https://symfony.com/doc/current/routing.html#creating-routes-as-annotations',
+        '@Security': 'https://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/security.html#security'
     };
 
     $controllerCode.find('.hljs-doctag').each(function() {
@@ -42,7 +42,7 @@ $(function() {
             return;
         }
 
-        var url = 'https://twig.symfony.com/doc/2.x/tags/' + tag + '.html#' + tag;
+        var url = 'https://twig.symfony.com/doc/3.x/tags/' + tag + '.html#' + tag;
 
         $(this).html(anchor(url, tag));
     });
@@ -51,7 +51,7 @@ $(function() {
     $templateCode.find('.hljs-template-variable > .hljs-name').each(function() {
         var func = $(this).text();
 
-        var url = 'https://twig.symfony.com/doc/2.x/functions/' + func + '.html#' + func;
+        var url = 'https://twig.symfony.com/doc/3.x/functions/' + func + '.html#' + func;
 
         $(this).html(anchor(url, func));
     });

config/packages/dev/swiftmailer.yaml

@@ -1,4 +1,4 @@
-# See https://symfony.com/doc/current/email/dev_environment.html
+# See https://symfony.com/doc/current/email.html#how-to-work-with-emails-during-development
 swiftmailer:
     # send all emails to a specific address
     #delivery_addresses: ['me@example.com']

config/packages/framework.yaml

@@ -13,7 +13,7 @@ framework:
 
     # When using the HTTP Cache, ESI allows to render page fragments separately
     # and with different cache configurations for each fragment
-    # https://symfony.com/doc/current/book/http_cache.html#edge-side-includes
+    # https://symfony.com/doc/current/http_cache/esi.html
     esi: true
     fragments: true
 

config/packages/security.yaml

@@ -2,18 +2,18 @@ security:
     encoders:
         # Our user class and the algorithm we'll use to encode passwords
         # 'auto' means to let Symfony choose the best possible password hasher (Argon2 or Bcrypt)
-        # https://symfony.com/doc/current/security.html#c-encoding-the-user-s-password
+        # https://symfony.com/doc/current/security.html#c-encoding-passwords
         App\Entity\User: 'auto'
 
     providers:
-        # https://symfony.com/doc/current/security.html#b-configuring-how-users-are-loaded
+        # https://symfony.com/doc/current/security/user_provider.html
         # In this example, users are stored via Doctrine in the database
         # To see the users at src/App/DataFixtures/ORM/LoadFixtures.php
-        # To load users from somewhere else: https://symfony.com/doc/current/security/custom_provider.html
+        # To load users from somewhere else: https://symfony.com/doc/current/security/user_provider.html#creating-a-custom-user-provider
         database_users:
             entity: { class: App\Entity\User, property: username }
 
-    # https://symfony.com/doc/current/security.html#initial-security-yml-setup-authentication
+    # https://symfony.com/doc/current/security.html#a-authentication-firewalls
     firewalls:
         dev:
             pattern: ^/(_(profiler|wdt)|css|images|js)/
@@ -36,7 +36,7 @@ security:
                 # When the user tries to access a protected page, they are redirected here
                 login_path: security_login
                 # Secure the login form against CSRF
-                # Reference: https://symfony.com/doc/current/security/csrf_in_login_form.html
+                # Reference: https://symfony.com/doc/current/security/csrf.html#csrf-protection-in-login-forms
                 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).

config/packages/test/security.yaml

@@ -1,5 +1,5 @@
 # this configuration simplifies testing URLs protected by the security mechanism
-# See https://symfony.com/doc/current/cookbook/testing/http_authentication.html
+# See https://symfony.com/doc/current/testing/http_authentication.html
 security:
     firewalls:
         main:

config/routes.yaml

@@ -1,7 +1,7 @@
 # These lines define a route using YAML configuration. The controller used by
 # the route (FrameworkBundle:Template:template) is a convenient shortcut when
 # the template can be rendered without executing any logic in your own controller.
-# See https://symfony.com/doc/current/cookbook/templating/render_without_controller.html
+# See https://symfony.com/doc/current/templates.html#rendering-a-template-directly-from-a-route
 homepage:
     path: /{_locale}
     controller: Symfony\Bundle\FrameworkBundle\Controller\TemplateController::templateAction

config/services.yaml

@@ -1,5 +1,5 @@
 # Put parameters here that don't need to change on each machine where the app is deployed
-# https://symfony.com/doc/current/best_practices/configuration.html#application-related-configuration
+# https://symfony.com/doc/current/best_practices.html#configuration
 parameters:
     locale: 'en'
     # This parameter defines the codes of the locales (languages) enabled in the application