temp add in of active supports experimental callbacks ... until Rails…

… 3 is out

lib/aqua/support/active_support/array.rb

@@ -0,0 +1,27 @@
+class Array
+  # Wraps the object in an Array unless it's an Array.  Converts the
+  # object to an Array using #to_ary if it implements that.
+  def self.wrap(object)
+    if object.nil?
+      []
+    elsif object.respond_to?(:to_ary)
+      object.to_ary
+    else
+      [object]
+    end
+  end
+
+  # Extracts options from a set of arguments. Removes and returns the last
+  # element in the array if it's a hash, otherwise returns a blank hash.
+  #
+  #   def options(*args)
+  #     args.extract_options!
+  #   end
+  #
+  #   options(1, 2)           # => {}
+  #   options(1, 2, :a => :b) # => {:a=>:b}
+  def extract_options!
+    last.is_a?(::Hash) ? pop : {}
+  end
+
+end