Merge pull request #18 from gnugat/symfony-3

Updated to Symfony 3

Author: marcj

composer.json

@@ -1,9 +1,9 @@
 {
     "name": "php-pm/httpkernel-adapter",
     "require": {
-        "stack/builder": "1.0.*",
-        "symfony/http-foundation": "~2.6",
-        "symfony/http-kernel": "~2.6"
+        "stack/builder": "^1.0",
+        "symfony/http-foundation": "^2.6|^3.0",
+        "symfony/http-kernel": "^2.6|^3.0"
     },
     "autoload": {
         "psr-4": {