Merge branch '2.7' into 2.8

* 2.7:
  removed the code allowing to switch to the nex dir structure

Author: fabpot

app/SymfonyStandard/Composer.php

@@ -22,9 +22,6 @@
         "sensio/generator-bundle": "~2.3"
     },
     "scripts": {
-        "post-root-package-install": [
-            "SymfonyStandard\\Composer::hookRootPackageInstall"
-        ],
         "post-install-cmd": [
             "Incenteev\\ParameterHandler\\ScriptHandler::buildParameters",
             "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap",