Merge branch '5.3' into 5.4

* 5.3:
  Update changelog for 5.3.12 release
  [NodeBundle] Restore NodeMenuItem::getLang method to fix BC break
  [AllBundles] Remove old website url and name usages
  [AllBundles] Update slack invite url and replace old bundles site references

README.md

@@ -7,8 +7,8 @@
 
 The KunstmaanUtilitiesBundle makes your life easier by providing a couple of small but usefull helper services you can use and re-use in your applications. We already implemented an easy to use cipher service and a shell helper service for you but feel free to send in a pull request with your additions. The shell helper allows you to run apps in the background, see if a process is running and has a method to kill a running process. The cipher service allow you to encode and decode strings using the Rijndael 256 cipher.
 
-More information about our bundles: [http://bundles.kunstmaan.be](http://bundles.kunstmaan.be).
+More information about our bundles: [https://cms.kunstmaan.be](https://cms.kunstmaan.be).
 
 ## Installation
 
-This bundle is compatible with all Symfony 2.2.* releases. More information about installing can be found in this line by line walkthrough of installing Symfony and all our bundles, please refer to the [Getting Started guide](http://bundles.kunstmaan.be/getting-started) and enjoy the full blown experience.
+More information about installing can be found in this line by line walkthrough of installing Symfony and all our bundles, please refer to the [Getting Started guide](https://kunstmaanbundlescms.readthedocs.io/en/stable/installation/) and enjoy the full blown experience.