Add sample Sinatra robot as sample

Author: unknown

README

@@ -5,8 +5,6 @@ Status:
 
 * Unit tests pass.
 
-* samples and robot.rb not yet ported from Python to Ruby.
-
 * Instructions for use with Sinatra + JRuby + AppEngine:
   http://blog.inigral.com/2009/06/07/a-google-wave-robot-container-in-sinatra/
 

samples

@@ -0,0 +1,17 @@
+require 'lib/waveapi/init'
+
+class Robot < AbstractRobot
+  set_name "Sinatra Bot"
+  add_cron :clock, 20
+  
+  def DOCUMENT_CHANGED(properties, context)
+    wavelet = context.GetWavelets[0]
+    blip = context.GetBlipById(wavelet.GetRootBlipId())
+    blip.GetDocument.SetText('Only I get to edit the top blip!')
+  end
+  def clock(event, context)
+    wavelet = context.GetWavelets[0]
+    blip = context.GetBlipById(wavelet.GetRootBlipId())
+	blip.GetDocument.SetText("It's " + Time.now.to_s)
+  end
+end