Added migration instructions

Author: dantleech

CHANGELOG.md

@@ -8,6 +8,34 @@ Changelog
   * `DataFixtures/LoadCmsData` renamed and moved to DataFixtures/Phpcr
   * PHPCR documents moved from Document to Doctrine/Phpcr
 
+Migration instructions:
+
+1. Set "addLocalePattern" flag to existing MultilangPage documents:
+
+````bash
+    ./app/console doctrine:phpcr:nodes:update --query="SELECT * FROM [nt:unstructured] WHERE phpcr:class = \"Symfony\\Cmf\\Bundle\\SimpleCmsBundle\\Document\\MultilangPage\"" --apply-closure="\$node->setProperty('addLocalePattern', true);"
+````
+
+2. Rename classes:
+
+````bash
+    export CMFNS="Symfony\\Cmf\\Bundle\\SimpleCmsBundle"
+    ./app/console doctrine:phpcr:document:reclass \
+       $CMFNS"\\Document\\MultilangPage" \
+       $CMFNS"\\Doctrine\\Phpcr\\Page"
+    ./app/console doctrine:phpcr:document:reclass \
+       $CMFNS"\\Document\\MultilangRedirectRoute" \
+       $CMFNS"\\Doctrine\\Phpcr\\MultilangRedirectRoute"
+    ./app/console doctrine:phpcr:document:reclass \
+       $CMFNS"\\Document\\MultilangRoute" \
+       $CMFNS"\\Doctrine\\Phpcr\\MultilangRoute"
+    ./app/console doctrine:phpcr:document:reclass \
+       $CMFNS"\\Document\\MultilangRouteProvider" \
+       $CMFNS"\\Doctrine\\Phpcr\\MultilangRouteProvider"
+    ./app/console doctrine:phpcr:document:reclass \
+       $CMFNS"\\Document\\Page" \
+       $CMFNS"\\Doctrine\\Phpcr\\Page"
+         
 * **2013-08-04**: Changed name of Sonata route names / patterns - now /admin/cmf/simplecms/foo instead of /admin/bundle/simplecms/foo
 
 1.0.0-beta3