don't allow to install the split Security packages

xabbuh · xabbuh · commit 8d2b5a21a076 · 2015-10-06T14:38:55.000+02:00
Currently, you would be able to install the Security component fromm
Symfony 2.3 together with one of the split packages from a higher
Symfony vesion like this:

```json
{
    "require": {
        "symfony/symfony": "2.3.*",
        "symfony/security-core": "~2.7"
    }
}
```

However, you will end up with classes being present twice.

This must be reverted after merging up in the `2.7` branch.
diff --git a/src/Symfony/Component/Security/composer.json b/src/Symfony/Component/Security/composer.json
@@ -32,6 +32,12 @@
         "psr/log": "~1.0",
         "ircmaxell/password-compat": "~1.0"
     },
+    "conflict": {
+      "symfony/security-acl": "*",
+      "symfony/security-core": "*",
+      "symfony/security-csrf": "*",
+      "symfony/security-http": "*"
+    },
     "suggest": {
         "symfony/class-loader": "",
         "symfony/finder": "",
