code: public void update(Property.Builder property, String channelName)
  			throws ChannelFinderException {
  		wrappedSubmit(new UpdateChannelProperty(property.toXml(), channelName));
  	}
docs: Update Property <tt>property</tt> by adding it to the channel
  <tt>channelName</tt>, without affecting the other channels.
  
  @param property
  - the property to be updated
  @param channelName
  - the channel to which this property should be added or
  updated.
  @throws ChannelFinderException - channelfinder exception