Replace recursive process.nextTick usage with setImmediate

[itpmngt]

As per http://blog.nodejs.org/2013/03/11/node-v0-10-0-stable/

You've got a recursive process.nextTick happening in line-by-line - and we're seeing this crash node occasionally with:

(node) warning: Recursive process.nextTick detected. This will break in the next version of node. Please use setImmediate for recursive deferral.
(node) warning: Recursive process.nextTick detected. This will break in the next version of node. Please use setImmediate for recursive deferral.
(node) warning: Recursive process.nextTick detected. This will break in the next .
version of node. Please use setImmediate for recursive deferral.
(node) warning: Recursive process.nextTick detected. This will break in the next version of node. Please use setImmediate for recursive deferral..........
RangeError: Maximum call stack size exceeded

More info here:
http://blog.peakji.com/node-js-process-nexttick-and-setimmediate/

And because setImmediate is not available in previous 'node' would be good to have a fallback like:

if (typeof setImmediate == 'undefined') { var setImmediate = process.nextTick; }

Great plugin - Thank You