Remove notice about AuthMemcookie deprecated since 1.15.

It's just a module now.

docs/simplesamlphp-advancedfeatures.md

@@ -55,12 +55,6 @@ simpleSAMLphp can be configured to send HTTP/S requests via such a proxy. The pr
 
 The default is not to use a proxy ('proxy' = null) and no username and password are used ('proxy.auth' = false).
 
-## Auth MemCookie
-
-[Auth MemCookie](http://authmemcookie.sourceforge.net/) support is deprecated in the standard code base of SimpleSAMLphp
- and will no longer be available starting in SimpleSAMLphp 2.0. Please use the new
- [memcookie module](https://github.com/simplesamlphp/simplesamlphp-module-memcookie) instead.
-
 ## Metadata signing
 
 SimpleSAMLphp supports signing of the metadata it generates. Metadata signing is configured by four options:

docs/simplesamlphp-theming.md

@@ -101,7 +101,7 @@ See the [Twig documentation](https://twig.symfony.com/doc/2.x/templates.html) fo
 ## Migrating to Twig templates
 
 For existing themes that have been created before SimpleSAMLphp 2.0, you may need to upgrade them to the Twig
-templating enging to be compatible with SimpleSAMLphp 2.0.
+templating engine to be compatible with SimpleSAMLphp 2.0.
 
 Twig works by extending a base template, which can itself include other partial templates. Some of the content of the old `includes/header.php` template is now located in a separate `_header.twig` file. This can be customized by copying it from the base template: