Documentation fix for unloadAll and example for loading of a shared library (called loadCLib).

examples/loadCLib/null/api/API.hs

@@ -0,0 +1,12 @@
+{-# OPTIONS -fglasgow-exts #-}
+
+module API where
+
+import Data.Dynamic
+
+data Null = Null { a, b :: Int }
+   deriving (Typeable, Show)
+
+null :: Null
+null = Null { a = 42 , b = 1 }
+