util.deprecate causes a stack overflow in browser #11

When util.js is bundled with browserify and run in browser, util.deprecate falls into an infinite loop here because process is not namespaced to global - it's only global within the context of the browserify bundle.

I can see where this would fall to @substack considering this deviates from the node environment, but I can also see why they would not want to set window.process from within a bundle. Checking typeof process rather than isUndefined(global.process) would be a simple solution.

Regardless, the --no-deprecation check should occur first to provide a way to avoid this.

Demo here.