Added new Digital read example for raspi, updated digitalRead in lib.

dist/digital-pin.js

@@ -99,6 +99,8 @@
             return _this.self.emit('error', "Error occurred while reading from pin " + _this.pinNum);
           } else {
             readData = data;
+            console.log("Digital read VALUE ===>");
+            console.log(data);
             return _this.self.emit('digitalRead', data);
           }
         });

examples/raspi_digitalread.coffee

@@ -0,0 +1,17 @@
+Cylon = require('..')
+
+# Initialize the robot
+Cylon.robot
+  connection:
+    name: 'raspi', adaptor: 'raspi'
+
+  devices:
+    [
+      {name: 'led', driver: 'led', pin: 13},
+      {name: 'button', driver: 'button', pin: 2}
+    ]
+
+  work: (my) ->
+    my.button.on 'push', -> my.led.toggle()
+
+.start()

src/digital-pin.coffee

@@ -71,6 +71,8 @@ namespace 'Cylon.IO', ->
           @self.emit('error', "Error occurred while reading from pin #{ @pinNum }")
         else
           readData = data
+          console.log("Digital read VALUE ===>")
+          console.log(data)
           @self.emit('digitalRead', data)
       )