WebOS 1.0 + 2.0 compatibility

[WillinuX-Code]

I checked the app in webos 2.0 emulator and it did fail (some undefined error). Needs to be checked in detail

Event listeners

• event listeners: registering event listeners is now used in a different way and should be adjusted to be compatible https://webostv.developer.lge.com/develop/remaining-backward-compatible/adding-event-handler/

webos 1 + 2 uses webkit

• https://webostv.developer.lge.com/discover/specifications/web-engine/
• Managing App Visibility / webkit.hidden https://webostv.developer.lge.com/develop/app-developer-guide/web-app-lifecycle/

[WillinuX-Code]

• not sure what exactly is going wrong here. Didn't manage to get a non production optimized to the emulator.
• also not sure if its worth the effort to support these "legacy" platforms
• for now on hold