All Whisper.events listeners are now defined and bound in background.js,
and we no longer need global methods for opening the inbox and
conversation views, as those are handled by AppView or internally by
InboxView.
// FREEBIE
Introduce a top level view for navigating between the inbox and the
installer, enabling an in-window relink flow. Navigation is driven
through the openInbox and openInstaller global events.
// FREEBIE
Listen for reconnectTimer to display reconnection info. Listen for
unauthorized to update network status immediately after a failed login,
rather than waiting for the normal 5s interval to time out.
// FREEBIE
When we can't connect due to being unlinked, network status indicator
will show an appropriate informational message and a button to open the
installer window to relink.
// FREEBIE
