Add configuration handler for convenience

README.md

@@ -38,13 +38,16 @@ Define which application Dredd::Rack must serve automatically:
 
 require 'dredd/rack'
 
-# Allow the automatic setup of a local application server when necessary
-#
-# Find the name of your application in its `config.ru` file.
-Dredd::Rack.app = Example::Application # or Rails.application, Sinatra::Application...
+Dredd::Rack.configure do |config|
+  # Allow the automatic setup of a local application server when necessary
+  #
+  # Find the name of your application in its `config.ru` file.
+  config.app = Example::Application # or Rails.application, Sinatra::Application...
+
+  # Optionally, you can define a custom Dredd command:
+  config.dredd_command = 'dredd'
+end
 
-# Optionally, you can define a custom Dredd command:
-Dredd::Rack.dredd_command = 'dredd'
 ```
 
 Usage

lib/dredd/rack/configuration.rb

@@ -35,6 +35,10 @@ def dredd_command=(command)
       @@app = nil
       @@dredd_command = 'dredd'
 
+      # Allow the default configuration to be overwritten from initializers
+      def configure
+        yield self if block_given?
+      end
     end
   end
 end