Merge "installer: Choose CACHE_ACCEL as the default if available"

diff --combined RELEASE-NOTES-1.27
index 4d3507c,2b95255..9b12b72
--- 1/RELEASE-NOTES-1.27
--- 2/RELEASE-NOTES-1.27
+++ b/RELEASE-NOTES-1.27
@@@ -99,6 -99,8 +99,8 @@@ production
  * Added a new hook, 'TitleMoveCompleting', which runs before a page move is committed.
  * $wgCdnReboundPurgeDelay was added to provide secondary delayed purges of URLs
    from CDN to mitigate DB replication lag and WAN cache purge lag.
+ * (T49162) Installer will default to setting CACHE_ACCEL as the main cache type
+   if it is available.
  
  === External library changes in 1.27 ===
  ==== Upgraded external libraries ====
@@@ -144,8 -146,6 +146,8 @@@
    ApiQueryBase::keyPartToTitle() all removed (deprecated since 1.24).
  * ApiQueryBase::checkRowCount() was removed (deprecated since 1.24).
  * ApiQueryBase::getDirectionDescription() was removed (deprecated since 1.25).
 +* ApiQuery::getModules() was removed (deprecated since 1.21).
 +* ApiMain::getModules() was removed (deprecated since 1.21).
  
  === Languages updated in 1.27 ===
  
@@@ -192,39 -192,6 +194,39 @@@ changes to languages because of Phabric
  * OutputPage::loginToUse() was removed (deprecated since 1.19).
  * Article::loadContent() was removed (deprecated since 1.19).
  * User::editToken() was removed (deprecated since 1.19).
 +* Removed --force-normal option of dumpBackup.php, as it no longer served
 +  any useful purpose since 1.22.
 +* The functions processOption() and processArgs() on the BackupDumper and
 +  TextPassDumper classes have been removed.
 +* The maintenance/backupTextPass.inc file was deleted. You should include
 +  maintenance/dumpTextPass.php instead.
 +* WikiPage::getUsedTemplates() was removed (deprecated since 1.19).
 +* wfEmptyMsg() was removed (deprecated since 1.18).
 +* OutputPage::permissionRequired() was removed (deprecated since 1.18).
 +* OutputPage::blockedPage() was removed (deprecated since 1.18).
 +* User::getSkin() was removed (deprecated since 1.18).
 +* OutputPage::includeJQuery() was removed (deprecated since 1.17).
 +* WikiPage::updateRestrictions() was removed (deprecated since 1.19).
 +* WikiPage::testPreSaveTransform() was removed (deprecated since 1.19).
 +* LogPage::logName() was removed (deprecated since 1.19).
 +* LogPage::logHeader() was removed (deprecated since 1.19).
 +* wfCheckLimits() was removed (deprecated since 1.24).
 +* Linker::makeKnownLinkObj() was removed (deprecated since 1.16).
 +* Linker::makeLinkObj() was removed (deprecated since 1.16).
 +* wfMsgForContentNoTrans() was removed (deprecated since 1.18).
 +* ChangesList::usePatrol was removed (deprecated since 1.22).
 +* wfMsgNoTrans() was removed (deprecated since 1.18).
 +* Linker::makeImageLink2 was removed (deprecated since 1.20).
 +* Title::userIsWatching() was removed (deprecated since 1.20).
 +* Removed WaitForSlave maintenance script; use SELECT MASTER_POS_WAIT()
 +  database function directly instead.
 +* wfMsg() was removed (deprecated since 1.18).
 +* wfMsgForContent() was removed (deprecated since 1.18).
 +* wfMsgReal() was removed (deprecated since 1.18).
 +* wfMsgGetKey() was removed (deprecated since 1.18).
 +* wfMsgHtml() was removed (deprecated since 1.18).
 +* wfMsgWikiHtml() was removed (deprecated since 1.18).
 +* wfMsgExt() was removed (deprecated since 1.18).
  
  == Compatibility ==