add guard and tweak a few things

Support/Gemfile

@@ -5,3 +5,4 @@ gem "rspec-expectations", :path => "../../rspec-expectations"
 gem "rspec-mocks", :path => "../../rspec-mocks"
 
 gem "ruby-debug"
+gem "guard-rspec"

Support/Guardfile

@@ -0,0 +1,8 @@
+# A sample Guardfile
+# More info at http://github.com/guard/guard#readme
+
+guard 'rspec', :version => 2 do
+  watch('^spec/(.*)_spec.rb')
+  watch('^lib/(.*)\.rb')                              { |m| "spec/lib/#{m[1]}_spec.rb" }
+  watch('^spec/spec_helper.rb')                       { "spec" }
+end

Support/spec/spec/mate/runner_spec.rb

@@ -1,10 +1,10 @@
 require 'spec_helper'
-require File.dirname(__FILE__) + '/../../../lib/spec/mate/runner'
+require File.expand_path('../../../../lib/spec/mate/runner', __FILE__)
 require 'stringio'
 
 describe Spec::Mate::Runner do
   def set_env
-    root = File.expand_path(File.dirname(__FILE__) + '../../../../../../rspec-core')
+    root = File.expand_path('../../../../../../rspec-core', __FILE__)
     ENV['TM_RSPEC_HOME'] = "#{root}"
     ENV['TM_PROJECT_DIRECTORY'] = File.expand_path(File.dirname(__FILE__))
     ENV['TM_FILEPATH'] = nil
@@ -29,9 +29,6 @@ def set_env
     $".delete_if do |path|
       path =~ /example_failing_spec\.rb/
     end
-    # Spec::Runner.options.example_groups.delete_if do |example_group|
-      # example_group.description == "An example failing spec"
-    # end
   end
 
   describe "#run_file" do