Add deprecation for messageLogger (#405)

yesod-core/Yesod/Internal/Core.hs

@@ -315,6 +315,7 @@ $doctype 5
                   -> LogStr -- ^ message
                   -> IO ()
     messageLogger a logger loc = messageLoggerSource a logger loc ""
+    {-# DEPRECATED messageLogger "Please use messageLoggerSource (since yesod-core 1.1.2" #-}
 
     -- | Send a message to the @Logger@ provided by @getLogger@.
     messageLoggerSource :: a

yesod-core/yesod-core.cabal

@@ -1,5 +1,5 @@
 name:            yesod-core
-version:         1.1.1.2
+version:         1.1.2
 license:         MIT
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>