Merge "New hook MessageCache::get"

diff --combined RELEASE-NOTES-1.23
index 669968d,2050e93..86bf6b1
--- 1/RELEASE-NOTES-1.23
--- 2/RELEASE-NOTES-1.23
+++ b/RELEASE-NOTES-1.23
@@@ -86,6 -86,8 +86,8 @@@ production
  * New user accounts' personal and talk pages are now watched by them by default.
  * Added SkinTemplateGetLanguageLink hook to allow changing the html of language
    links.
+ * Added MessageCache::get hook as a new way to customize messages across
+   multiple sites.
  
  === Bug fixes in 1.23 ===
  * (bug 41759) The "updated since last visit" markers (on history pages, recent
@@@ -163,9 -165,6 +165,9 @@@
  * Added siprop=restrictions to API action=query&meta=siteinfo for querying
    possible page restriction (protection) levels and types.
  * Added prop 'limitreportdata' and 'limitreporthtml' to action=parse.
 +* (bug 58627) Provide language names on action=parse&prop=langlinks.
 +* Deprecated llurl= in favour of llprop=url for action=query&prop=langlinks.
 +* Added llprop=langname and llprop=autonym for action=query&prop=langlinks.
  
  === Languages updated in 1.23 ===