Don't explicitly bind to localhost

[cowboyd]

Motivation

Simulation servers should be addressable as hosts other than "localhost". We ran into a case where we we were binding simulators as a service in docker and a simulator we would normally access as http://localhost:5000 was addressable as http://simulators:5000.

Approach

Remove the explicit binding to "localhost"

[frontsidejack]

Package Changes Through 57ba738

There are 1 changes which include @simulacrum/foundation-simulator with minor

Planned Package Versions

The following package releases are the planned based on the context of changes in this pull request.

package	current	next
@simulacrum/foundation-simulator	0.5.1	0.6.0
@simulacrum/auth0-simulator	0.11.1	0.11.2
@simulacrum/github-api-simulator	0.6.1	0.6.2

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npm i https://pkg.pr.new/thefrontside/simulacrum/@simulacrum/auth0-simulator@335

npm i https://pkg.pr.new/thefrontside/simulacrum/@simulacrum/foundation-simulator@335

npm i https://pkg.pr.new/thefrontside/simulacrum/@simulacrum/github-api-simulator@335

commit: 57ba738

[jbolda]

Per our discussion, I added a commit which adjusted the intent slightly to allow one to pass all the args including the host for those special cases that require it (see auth simulation).