Implement SPADB
Payloads: add a name attributes to SPASPec
SPA: refactor the use of the presenceRequest API
Worker: add an SPADB to the TKWorker
Sidebar: setup the user nick from the worker
Persist and load the SPA setup from an SPADB
Worker: drop the SPADB when signing out
Fix tests
Remove spadb.js from the homepage
Fix a few port calls
Remove toJSON calls on payloads where it isn't necessary
Stop trying to force the payloads.offer object into what the conversation window needs, by providing an explicit structure
Tests: extend the test coverage to spadb.js
SPADB: remove any reference to ContactsDB
Better semantics for SPA message payload mapping.
Added move-accept SPA event payload & handling.
Clear any pending long polling requests when a client reconnects
Added support for call termination on move-accept event received.
Merge pull request #328 from n1k0/call-move-acknowledgment

Call move acknowledgment
typo