account example error on node 0.8.4

Trace below. This happens because the domain option is copied to the ApiServer instance. In 0.8.x EventEmitter tries to 'enter' the domain. I changed the name of the domain option to 'domain_compat' and to get it working.

The real fix? Use a sub-object for the EventEmitter instead of inheriting it? Namespace the options? Both inconvenient.

events.js:80
this.domain.enter();
^
TypeError: Object localhost has no method 'enter'
at EventEmitter.emit (events.js:80:19)
at onRequest (.... /node-apiserver/examples/account/node_modules/apiserver/lib/apiserver.js:120:8)
at Server.EventEmitter.emit (events.js:91:17)
at HTTPParser.parser.onIncoming (http.js:1783:12)
at HTTPParser.parserOnHeadersComplete [as onHeadersComplete](http.js:111:23)
at Socket.socket.ondata (http.js:1680:22)
at TCP.onread (net.js:410:27)

Reproduce the account example on Node 0.8.4 and start at apiserver/lib/apiserver.js:120, using the stack trace to inspect how the domain option reaches EventEmitter. Compare the reported domain_compat workaround with the proposed EventEmitter sub-object or namespaced options; done means the example no longer calls enter on the localhost value.

Written by the indexing model from the issue text.