Haskell sources moved to src/ to unclutter toplevel

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diff --git a/src/Plugins/Date.hs b/src/Plugins/Date.hs
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+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Date
+-- Copyright   :  (c) Andrea Rossato
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Jose A. Ortega Ruiz <jao@gnu.org>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A date plugin for Xmobar
+--
+-- Usage example: in template put
+--
+-- > Run Date "%a %b %_d %Y <fc=#ee9a00> %H:%M:%S</fc>" "Mydate" 10
+--
+-----------------------------------------------------------------------------
+
+module Plugins.Date (Date(..)) where
+
+import Plugins
+
+import System.Locale
+import System.Time
+
+data Date = Date String String Int
+    deriving (Read, Show)
+
+instance Exec Date where
+    alias (Date _ a _) = a
+    run   (Date f _ _) = date f
+    rate  (Date _ _ r) = r
+
+date :: String -> IO String
+date format = do
+  t <- toCalendarTime =<< getClockTime
+  return $ formatCalendarTime defaultTimeLocale format t