message: feat: random network key generator
diff: v-model="zwave.networkKey"
  label="Network Key"
  :rules="[rules.validKey]"
  + append-outer-icon="wifi_protected_setup"
  + @click:append-outer="randomKey"
  ></v-text-field>
  </v-flex>
  <v-flex xs12 sm6>
  @@ -540,6 +542,18 @@ export default {
  }
  },
  methods: {
  + randomKey () {
  + var key = ''
  +
  + while (key.length < 32) {
  + const x = Math.round(Math.random() * 255)
  + .toString(16)
  + .toUpperCase()
  + key += x.length === 2 ? x : '0' + x
  + }
  +
  + this.zwave.networkKey = key
  + },
  readFile (file, callback) {
  const reader = new FileReader()
  