Add support for Bespoke.js

[marcbuils]

Bespoke (http://markdalgleish.com/projects/bespoke.js/) is a new framework compatible with strut (http://strut.io).

And thank you very much for remoteprez, it's a very good tool !!!

[ralt]

Hi :)

I'm surprised this project is still used tbh!

Otherwise, it doesn't look hard to add its support. There is a global object with some handy methods, so it shouldn't be long. Feel free to add a pull request if necessary, the code to change is there and there.

[marcbuils]

Thank you for your help,

I have add support of Bespoke.js and it's works very fine.
My modifications are here: #19.

Thank you !