[BUG] Multiple Hubs crashing homebridge
Hello,

when I add 2 hubs in version 1.0.0-rc.2 with TVmode the homebridge plugin is crashing at every restart with that messages:

```
Jun 16 16:13:54 Server homebridge[4186]: [6/16/2019, 4:13:54 PM] TypeError: Cannot read property 'name' of undefined
Jun 16 16:13:54 Server homebridge[4186]:     at HarmonyPlatform.configureAccessory (/usr/lib/node_modules/homebridge-harmony/harmonyPlatform.js:101:69)
Jun 16 16:13:54 Server homebridge[4186]:     at Server._configCachedPlatformAccessories (/usr/lib/node_modules/homebridge/lib/server.js:386:24)
Jun 16 16:13:54 Server homebridge[4186]:     at Server.run (/usr/lib/node_modules/homebridge/lib/server.js:93:8)
Jun 16 16:13:54 Server homebridge[4186]:     at module.exports (/usr/lib/node_modules/homebridge/lib/cli.js:59:10)
Jun 16 16:13:54 Server homebridge[4186]:     at Object.<anonymous> (/usr/lib/node_modules/homebridge/bin/homebridge:17:22)
Jun 16 16:13:54 Server homebridge[4186]:     at Module._compile (internal/modules/cjs/loader.js:816:30)
Jun 16 16:13:54 Server homebridge[4186]:     at Object.Module._extensions..js (internal/modules/cjs/loader.js:827:10)
Jun 16 16:13:54 Server homebridge[4186]:     at Module.load (internal/modules/cjs/loader.js:685:32)
Jun 16 16:13:54 Server homebridge[4186]:     at Function.Module._load (internal/modules/cjs/loader.js:620:12)
Jun 16 16:13:54 Server homebridge[4186]:     at Function.Module.runMain (internal/modules/cjs/loader.js:877:12)
Jun 16 16:13:54 Server homebridge[4186]:     at internal/main/run_main_module.js:21:11

```

Could you please fix this?