* Fixed signature of Receiver methods
* Implemented create/destroy mechanism and bootstrap request in BureauDirector
* Added BureauContext class to expose bureau information on top of usual
presents stuff
* Added BureauContext implementation in BureauClient
* Added code to kick off the director when the client logs on
* Added credentials for a bureau logon, which is just a token passed to
command line launcher
* Added concept of bureau types to distinguish between executable and command
line arguments; includes interface BureauRegistry.Launcher
* Implemented backend for the registry
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@5027 542714f4-19e9-0310-aa3c-eee0fc999fb1
Jamie Doornbos