Added the ability to send options to the adapter instance.

lib/adapter.rb

@@ -32,10 +32,11 @@ def self.[](name)
   private
     def self.get_adapter_instance(name)
       Class.new do
-        attr_reader :client
+        attr_reader :client, :options
 
-        def initialize(client)
+        def initialize(client, options={})
           @client = client
+          @options = options
         end
 
         include Adapter.definitions[name.to_sym]

spec/adapter_spec.rb

@@ -180,6 +180,14 @@ def decode(value)
     end
     let(:adapter) { @adapter }
 
+    describe "#initialize" do
+      it "works with options" do
+        Adapter.define(:memory, valid_module)
+        adapter = Adapter[:memory].new({}, :namespace => 'foo')
+        adapter.options[:namespace].should == 'foo'
+      end
+    end
+
     describe "#name" do
       it "returns adapter name" do
         adapter.name.should be(:memory)