Expose Identity client in simple bindings
Fix import of MimeTypes service
Avoid linux specific dependencies

When building machine signature or fetching machine name, we relied on /etc/hostname and /proc

We still prefer them, but we don't require them
Assume a config-file relative path for machineid
Created unit test for server
toString for V2Project / V2ProjectList
Default hostkey path to config-relative dir
Don't include v2.0 in service registry for identity

Also move to extension interface
Don't auto-create a default project for user
Return properly from SSH if there's an unexpected error parsing the cmdlet
Throw error if we can't find help cmdlet
Latest discovery, with classpath manifest discovery

This gets around the tricks that surefire plays