Remove contribs and examples

Everything has now been moved to a separate repository at
https://github.com/GrammaticalFramework/gf-contrib
The contents of the examples folder are build during SetupWeb

examples/foods/FoodsSwe.gf

@@ -0,0 +1,7 @@
+--# -path=.:present
+
+-- (c) 2009 Aarne Ranta under LGPL
+
+concrete FoodsSwe of Foods = FoodsI with 
+  (Syntax = SyntaxSwe),
+  (LexFoods = LexFoodsSwe) ** {flags language = sv_SE;} ;