don't allow to install the split Security packages

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.
symfony · fabpot · Oct 28, 2015 · Oct 6, 2015 · Oct 27, 2015 · 0d140642e0af6ef84acae59d8c729c91bd460e37
commit 0d140642e0af6ef84acae59d8c729c91bd460e37
diff --git a/composer.json b/composer.json
@@ -48,7 +48,10 @@
        "symfony/proxy-manager-bridge": "self.version",
        "symfony/routing": "self.version",
        "symfony/security": "self.version",
+        "symfony/security-acl": "self.version",
        "symfony/security-bundle": "self.version",
+        "symfony/security-core": "self.version",
+        "symfony/security-http": "self.version",
        "symfony/serializer": "self.version",
        "symfony/stopwatch": "self.version",
        "symfony/swiftmailer-bridge": "self.version",

diff --git a/src/Symfony/Component/Security/composer.json b/src/Symfony/Component/Security/composer.json
@@ -32,6 +32,11 @@
        "psr/log": "~1.0",
        "ircmaxell/password-compat": "~1.0"
    },
+    "replace": {
+      "symfony/security-acl": "self.version",
+      "symfony/security-core": "self.version",
+      "symfony/security-http": "self.version"
+    },
    "suggest": {
        "symfony/class-loader": "",
        "symfony/finder": "",