feature #1056 Remove app/autoload.php (BPScott)

This PR was merged into the 3.3-dev branch.

Discussion
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Remove app/autoload.php

Now that symfony/symfony#21837 is merged, app/autoload.php can be removed and replaced with the standard Composer autoloader.

~WAIT! This can't be merged *just* yet, as it throws errors when running the `buildBootstrap` post install/update script. The fix for this is in sensiolabs/SensioDistributionBundle#313. That PR must be merged and this PR must be updated to use a version of SensioDistributionBundle that contains the fix before this is good to go.~

EDIT: sensiolabs/SensioDistributionBundle#313 is merged (as of 24/04), and this PR has been updated to use the latest version of SensioDistributionBundle. This is now good to merge

Commits
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298f8b2 Remove app/autoload.php

bin/console

@@ -13,7 +13,7 @@ use Symfony\Component\Debug\Debug;
 set_time_limit(0);
 
 /** @var Composer\Autoload\ClassLoader $loader */
-$loader = require __DIR__.'/../app/autoload.php';
+$loader = require __DIR__.'/../vendor/autoload.php';
 
 $input = new ArgvInput();
 $env = $input->getParameterOption(['--env', '-e'], getenv('SYMFONY_ENV') ?: 'dev');

composer.json

@@ -16,7 +16,7 @@
         "doctrine/doctrine-bundle": "^1.6",
         "doctrine/orm": "^2.5",
         "incenteev/composer-parameter-handler": "^2.0",
-        "sensio/distribution-bundle": "^5.0",
+        "sensio/distribution-bundle": "^5.0.19",
         "sensio/framework-extra-bundle": "^3.0.2",
         "symfony/monolog-bundle": "^3.1.0",
         "symfony/polyfill-apcu": "^1.0",

phpunit.xml.dist

@@ -5,7 +5,7 @@
          xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/4.8/phpunit.xsd"
          backupGlobals="false"
          colors="true"
-         bootstrap="app/autoload.php"
+         bootstrap="vendor/autoload.php"
 >
     <php>
         <ini name="error_reporting" value="-1" />

web/app.php

@@ -3,7 +3,7 @@
 use Symfony\Component\HttpFoundation\Request;
 
 /** @var \Composer\Autoload\ClassLoader $loader */
-$loader = require __DIR__.'/../app/autoload.php';
+$loader = require __DIR__.'/../vendor/autoload.php';
 if (PHP_VERSION_ID < 70000) {
     include_once __DIR__.'/../var/bootstrap.php.cache';
 }

web/app_dev.php

@@ -19,7 +19,7 @@
 }
 
 /** @var \Composer\Autoload\ClassLoader $loader */
-$loader = require __DIR__.'/../app/autoload.php';
+$loader = require __DIR__.'/../vendor/autoload.php';
 Debug::enable();
 
 $kernel = new AppKernel('dev', true);