removed the (too) fancy dsl. Also introduce register indirection

lib/support/hash_attributes.rb

@@ -24,14 +24,3 @@ module Support
     end
   end
 end
-
-class Binding
-  #these are defined in 2.1 and thus the definitions should be conditional. TODO
-  def local_variable_defined? sym
-    vars = eval("local_variables")
-    vars.include? sym
-  end
-  def local_variable_get sym
-    eval(sym.to_s)
-  end
-end