initial work to being able to use per-model redis

configurations

spec/database_spec.rb

@@ -0,0 +1,10 @@
+require "spec_helper"
+
+describe Redistat::Database do
+  include Redistat::Database
+  
+  it "should make #db method available when included" do
+    db.should == Redistat.redis
+  end
+  
+end