add config page for fsck, and alert with button when a fsck is running

Assistant/WebApp/Configurators/Fsck.hs

@@ -0,0 +1,17 @@
+{- git-annex assistant fsck configuration
+ -
+ - Copyright 2013 Joey Hess <joey@kitenet.net>
+ -
+ - Licensed under the GNU AGPL version 3 or higher.
+ -}
+
+{-# LANGUAGE TypeFamilies, QuasiQuotes, TemplateHaskell, OverloadedStrings, FlexibleContexts #-}
+{-# LANGUAGE CPP #-}
+
+module Assistant.WebApp.Configurators.Fsck where
+
+import Assistant.WebApp.Common
+
+getConfigFsckR :: Handler Html
+getConfigFsckR = page "Consistency checks" (Just Configuration) $ do
+	error "TODO"