Provided a tutorial for RabbitMq priority queue implementation

[girirajsharma]

I have observed RabbitMq tutorials for different client's are quite consistent i.e., exactly same tutorials are available for all client's. Updating/adding tutorial of one of the client possibly requires porting the exact same tutorial for all other client's

Therefore, I would be happy to issue following PR's step wise as follow-up commits:

1. Porting the same tutorial for Javascript (with Node and amqp-node) (using promises/futures)
2. Porting the same tutorial for all RabbitMq clients with a separate PR for each client in step-wise order.
3. If feasible and applicable, porting the tutorial demonstration over official RabbitMq website in step-wise order for supported client's as such the website source is open.

Please correct me if above idea(s) doesn't really make sense or is(are) not applicable.

[girirajsharma]

No idea why it fails on Node.js~0.9 and passes on all other versions.

[squaremo]

Thanks for the PR 👍

You should really put the idea of a priority queue tutorial to the RabbitMQ developers (maybe via https://groups.google.com/forum/#!forum/rabbitmq-users). They will probably want to have some text to go along with it, but maybe you could collaborate on that if they like the idea.

In the meantime, I welcome example code -- could you perhaps put send and receive in the same file, and move it to examples/?

[girirajsharma]

Yeah, I will be pushing the idea on the suggested forum and will act accordingly. Infact, I am on it :)

It's fine to move the code to examples/ but i din't get putting send and receive in the same file. Isn't it better to keep them separate like all other tutorials.