Update event section in tutorials and event demo - object events

[fabricjs]

Update event section in tutorials and event demo - object events

[buidan]

Hi Kienz,
I have question would like to ask you.
I want catch dblclick event with every text object.

I tried this code:

var textSample = new fabric.Text(...);
fabric.util.addListener(textSample, 'dblclick', function(){alert('ok');});

But it's not work.
Please give a solution in this case.

Thank you!

[Kienz]

@buidan dblclick event is only supported for fabric.IText objects. But you can use Event.js library to listen to 'dblclick' event.
First you have to build Fabric.js with Event.js library included: node build.js modules=ALL exclude=cufon,json minifier=uglifyjs.

Now you can listen to 'dblclick' events for the whole canvas - see this jsfiddle: http://jsfiddle.net/Kienz/F6UU4/