Rename "roles" to "units". Put units in their own folders.

lib/units/device/plugins/identity.js

@@ -0,0 +1,22 @@
+var syrup = require('syrup')
+
+var devutil = require('../../../util/devutil')
+var logger = require('../../../util/logger')
+
+module.exports = syrup.serial()
+  .dependency(require('../support/properties'))
+  .dependency(require('./display'))
+  .dependency(require('./phone'))
+  .define(function(options, properties, display, phone) {
+    var log = logger.createLogger('device:plugins:identity')
+
+    function solve() {
+      log.info('Solving identity')
+      var identity = devutil.makeIdentity(options.serial, properties)
+      identity.display = display
+      identity.phone = phone
+      return identity
+    }
+
+    return solve()
+  })