add configs for autotest and watchr

.autotest

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+Autotest.add_hook :initialize do |at|
+  at.add_mapping(%r%^lib/.*\.rb$%) {
+    at.files_matching %r%^spec/.*\_spec.rb$%
+  }
+end
+

autotest/discover.rb

@@ -0,0 +1 @@
+Autotest.add_discovery { "rspec2" }

specs.watchr

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+# Run me with:
+#
+#   $ watchr specs.watchr
+
+# --------------------------------------------------
+# Convenience Methods
+# --------------------------------------------------
+def all_test_files
+  Dir['spec/**/*_spec.rb']
+end
+
+def run_test_matching(thing_to_match)
+  matches = all_test_files.grep(/#{thing_to_match}/i)
+  if matches.empty?
+    puts "Sorry, thanks for playing, but there were no matches for #{thing_to_match}"  
+  else
+    run matches.join(' ')
+  end
+end
+
+def run(files_to_run)
+  puts("Running: #{files_to_run}")
+  system("clear;rspec -cfs #{files_to_run}")
+  no_int_for_you
+end
+
+def run_all
+  run(all_test_files.join(' '))
+end
+
+# --------------------------------------------------
+# Watchr Rules
+# --------------------------------------------------
+watch('^spec/(.*)_spec\.rb')   { run_all }
+watch('^lib/(.*)\.rb')         { run_all }
+
+# --------------------------------------------------
+# Signal Handling
+# --------------------------------------------------
+
+def no_int_for_you
+  @sent_an_int = nil
+end
+
+Signal.trap 'INT' do
+  if @sent_an_int then      
+    puts "   A second INT?  Ok, I get the message.  Shutting down now."
+    exit
+  else
+    puts "   Did you just send me an INT? Ugh.  I'll quit for real if you do it again."
+    @sent_an_int = true
+    Kernel.sleep 1.5
+    run_all
+  end
+end
+
+# vim:ft=ruby