Initial version of transactions. Shell command implemented as an example. Still needs channel cleanup on app side, handling a device dying in the middle of a transaction, and getting device list back to normal.

lib/wire/router.js

@@ -34,10 +34,14 @@ Router.prototype.handler = function() {
     if (type) {
       this.emit(
         wrapper.type
-      , channel
+      , wrapper.channel || channel
       , wire[type].decode(wrapper.message)
       , data
       )
+      this.emit(
+        'message'
+      , channel
+      )
     }
     else {
       log.warn(