change documentation to say symfony instead of symfony2

Author: dbu

CONTRIBUTING.md

@@ -1,8 +1,8 @@
 Contributing
 ------------
 
-Symfony2 CMF is an open source, community-driven project. We follow the same
-guidelines as core Symfony2. If you'd like to contribute, please read the
+Symfony CMF is an open source, community-driven project. We follow the same
+guidelines as core Symfony. If you'd like to contribute, please read the
 [Contributing Code][1] part of the documentation. If you're submitting a pull
 request, please follow the guidelines in the [Submitting a Patch][2] section
 and use the [Pull Request Template][3].

src/Resources/meta/LICENSE

@@ -2,7 +2,7 @@ RoutingBundle
 
 The MIT License
 
-Copyright (c) 2011-2017 Symfony2 CMF
+Copyright (c) 2011-2017 Symfony CMF
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal