Merge pull request #6 from partikus/feature/symfony-comps-upgrade

Add possibility to install newer version of components

Author: FabioBatSilva

composer.json

@@ -20,8 +20,8 @@
         "protobuf-php/google-protobuf-proto" : ">=0.1",
         "zendframework/zend-code"            : "^2.6",
         "psr/log"                            : "^1.0",
-        "symfony/console"                    : "^2.5",
-        "symfony/process"                    : "^2.5",
+        "symfony/console"                    : "^2.5|^3.0",
+        "symfony/process"                    : "^2.5|^3.0",
         "doctrine/inflector"                 : "^1.0"
     },
     "require-dev": {