Deprecate support for various testing frameworks

lib/sinatra/test.rb

@@ -1,12 +1,19 @@
 require 'sinatra/base'
 
 module Sinatra
-
   module Test
     include Rack::Utils
 
     attr_reader :app, :request, :response
 
+    def self.deprecate(framework)
+      warn <<-EOF
+Warning: support for the #{framework} testing framework is deprecated and
+will be dropped in Sinatra 1.0. See <http://sinatra.github.com/testing.html>
+for more information.
+      EOF
+    end
+
     def make_request(verb, path, data=nil, h=nil)
       @app = Sinatra::Application if @app.nil? && defined?(Sinatra::Application)
       fail "@app not set - cannot make request" if @app.nil?

lib/sinatra/test/bacon.rb

@@ -1,6 +1,8 @@
 require 'bacon'
 require 'sinatra/test'
 
+Sinatra::Test.deprecate('Bacon')
+
 Sinatra::Default.set(
   :environment => :test,
   :run => false,

lib/sinatra/test/rspec.rb

@@ -3,6 +3,8 @@ require 'sinatra/test/unit'
 require 'spec'
 require 'spec/interop/test'
 
+Sinatra::Test.deprecate('RSpec')
+
 Sinatra::Default.set(
   :environment => :test,
   :run => false,

lib/sinatra/test/spec.rb

@@ -2,6 +2,8 @@ require 'test/spec'
 require 'sinatra/test'
 require 'sinatra/test/unit'
 
+Sinatra::Test.deprecate('test/spec')
+
 module Sinatra::Test
   def should
     @response.should

lib/sinatra/test/unit.rb

@@ -1,6 +1,8 @@
 require 'sinatra/test'
 require 'test/unit'
 
+Sinatra::Test.deprecate('test/unit')
+
 Test::Unit::TestCase.send :include, Sinatra::Test
 
 Sinatra::Default.set(