bug #426 Updated sensio/distribution-bundle dependency to fix loading PHP extensions twice (bocharsky-bw)

This PR was merged into the master branch.

Discussion
----------

Updated sensio/distribution-bundle dependency to fix loading PHP extensions twice

Related to the https://github.com/sensiolabs/SensioDistributionBundle/issues/299

Current version of `sensio/distribution-bundle` with Composer 1.3 throws warnings on composer install/update:
```
Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Nothing to install or update
Generating autoload files
> Incenteev\ParameterHandler\ScriptHandler::buildParameters
Updating the "app/config/parameters.yml" file
> Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::buildBootstrap
Cannot load Zend OPcache - it was already loaded
PHP Warning:  Module 'imagick' already loaded in Unknown on line 0
PHP Warning:  Module 'intl' already loaded in Unknown on line 0
PHP Warning:  Module 'mcrypt' already loaded in Unknown on line 0
PHP Warning:  Module 'OAuth' already loaded in Unknown on line 0
PHP Warning:  Module 'pdo_pgsql' already loaded in Unknown on line 0
PHP Warning:  Module 'yaml' already loaded in Unknown on line 0

Warning: Module 'imagick' already loaded in Unknown on line 0

Warning: Module 'intl' already loaded in Unknown on line 0

Warning: Module 'mcrypt' already loaded in Unknown on line 0

Warning: Module 'OAuth' already loaded in Unknown on line 0

Warning: Module 'pdo_pgsql' already loaded in Unknown on line 0

Warning: Module 'yaml' already loaded in Unknown on line 0
> Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache
Cannot load Zend OPcache - it was already loaded
PHP Warning:  Module 'imagick' already loaded in Unknown on line 0
PHP Warning:  Module 'intl' already loaded in Unknown on line 0
PHP Warning:  Module 'mcrypt' already loaded in Unknown on line 0
PHP Warning:  Module 'OAuth' already loaded in Unknown on line 0
PHP Warning:  Module 'pdo_pgsql' already loaded in Unknown on line 0
PHP Warning:  Module 'yaml' already loaded in Unknown on line 0

Warning: Module 'imagick' already loaded in Unknown on line 0

Warning: Module 'intl' already loaded in Unknown on line 0

Warning: Module 'mcrypt' already loaded in Unknown on line 0

Warning: Module 'OAuth' already loaded in Unknown on line 0

Warning: Module 'pdo_pgsql' already loaded in Unknown on line 0

Warning: Module 'yaml' already loaded in Unknown on line 0

 // Clearing the cache for the dev environment with debug
 // true

 [OK] Cache for the "dev" environment (debug=true) was successfully cleared.

> Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::installAssets
Cannot load Zend OPcache - it was already loaded
PHP Warning:  Module 'imagick' already loaded in Unknown on line 0
PHP Warning:  Module 'intl' already loaded in Unknown on line 0
PHP Warning:  Module 'mcrypt' already loaded in Unknown on line 0
PHP Warning:  Module 'OAuth' already loaded in Unknown on line 0
PHP Warning:  Module 'pdo_pgsql' already loaded in Unknown on line 0
PHP Warning:  Module 'yaml' already loaded in Unknown on line 0

Warning: Module 'imagick' already loaded in Unknown on line 0

Warning: Module 'intl' already loaded in Unknown on line 0

Warning: Module 'mcrypt' already loaded in Unknown on line 0

Warning: Module 'OAuth' already loaded in Unknown on line 0

Warning: Module 'pdo_pgsql' already loaded in Unknown on line 0

Warning: Module 'yaml' already loaded in Unknown on line 0

 Trying to install assets as relative symbolic links.

 --- ------------------------------ ------------------
      Bundle                         Method / Error
 --- ------------------------------ ------------------
  ✔   WhiteOctoberPagerfantaBundle   relative symlink
 --- ------------------------------ ------------------

 [OK] All assets were successfully installed.

> Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::installRequirementsFile
> Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::prepareDeploymentTarget
```

Commits
-------

c18a2f5 Fix loading PHP extensions twice by sensio/distribution-bundle

Author: javiereguiluz

composer.lock

@@ -780,7 +780,11 @@ protected function getRealpathCacheSize()
     {
         $size = ini_get('realpath_cache_size');
         $size = trim($size);
-        $unit = strtolower(substr($size, -1, 1));
+        $unit = '';
+        if (!ctype_digit($size)) {
+            $unit = strtolower(substr($size, -1, 1));
+            $size = (int) substr($size, 0, -1);
+        }
         switch ($unit) {
             case 'g':
                 return $size * 1024 * 1024 * 1024;