Update npm tests & config to pass in Windows. (RIPD-209)

* Extend timeout for WebSocket test.
* Windows networking doesn't like connecting to 0.0.0.0. Use 127.0.0.1
* Additional command line options in config. Can potentially be used to run rippled in a debugger.

This pull request, combined with [updated wiki instructions](https://ripple.com/wiki/Visual_Studio_2013_Build_Instructions#Create_a_test_config.js), will allow all of the npm tests to run and pass under Windows / Visual Studio builds, _except_ ```CNY test BS.P101```. That is a separate issue (RIPD-494) to be resolved in a pull request to follow.