Return task object including fault details in case of fault. Return reason for connection request failure.

lib/api-functions.coffee

@@ -130,15 +130,19 @@ connectionRequest = (deviceId, callback) ->
 
 watchTask = (taskId, timeout, callback) ->
   setTimeout( () ->
-    db.tasksCollection.findOne({_id : taskId}, {'_id' : 1}, (err, task) ->
+    db.tasksCollection.findOne({_id : taskId}, {'_id' : 1, 'fault' : 1}, (err, task) ->
+      return callback(err) if err
+
       if task
         timeout -= 500
-        if timeout < 0
-          callback(new Error('Timeout'))
+        if task.fault?
+          callback(null, 'fault')
+        else if timeout <= 0
+          callback(null, 'timeout')
         else
           watchTask(taskId, timeout, callback)
       else
-        callback(err)
+        callback(null, 'completed')
     )
   , 500)