This release includes the addition of guests, patchXHR, some API refinements, and bugfixes.

• Added local.util.nextTick to optimize async
• Changed relay.getDomain() to .getAssignedDomain() for clarity
• Added relay.getAssignedUrl()
• Updated gwr.io protocols to no longer combine semantics (gwr.io/user item -> gwr.io/user/item)
• Altered peer URI scheme to support ports in relay and application hosts
• Added "host" attribute to requests given to local servers
• Added non-standard "method" attr to requests extracted from anchor elements
• Added opt.guestof to Relay requestAccessToken
• Added Relay event "outOfStreams" to handle 420 response (no more allocatable streams)
• Added local.patchXHR