misc fixes

[bounceme]

I'll test this some more and get some examples showing the new parts

[bounceme]

one()
  .then(two)
  .then(function() {
    console.log("value");
  })
foo(a(b,
      c))

var protocol = self.proxy && !self.tunnel ? self.proxy.protocol : self.uri.protocol,
  defaultModules = {
    'http:': http,
    'https:': https
  },
  httpModules = self.httpModules || {}

self.httpModule = httpModules[protocol] || defaultModules[protocol]

This mostly just fixes a few odd kinds of behavior with the logic of chaining operators and commas. I've done a good amount of testing and saw no problems with perf or regressions

[davidchambers]

This mostly just fixes a few odd kinds of behavior with the logic of chaining operators and commas.

Sounds good!

[bounceme]

I think this is merge-able. we can always revert if we need too