Merge "Remove $wgSessionsInMemcached"

diff --combined RELEASE-NOTES-1.29
index 5b5640f,da2eb7f..ab52544
--- 1/RELEASE-NOTES-1.29
--- 2/RELEASE-NOTES-1.29
+++ b/RELEASE-NOTES-1.29
@@@ -36,7 -36,6 +36,7 @@@ production
    in the query string is now an error. They should be submitted in the POST
    body instead.
  * The capture option for action=resetpassword has been removed
 +* action=clearhasmsg now requires a POST.
  
  === Action API internal changes in 1.29 ===
  
@@@ -54,6 -53,8 +54,8 @@@ changes to languages because of Phabric
  === Other changes in 1.29 ===
  * Database::getSearchEngine() (deprecated in 1.28) was removed. Use
    SearchEngineFactory::getSearchEngineClass() instead.
+ * $wgSessionsInMemcached (deprecated in 1.20) was removed. No replacement is
+   required as all sessions are stored in Object Cache now.
  
  == Compatibility ==