Fix to support subfolders when packaging

v0.0.4

Add icon and set window properties

Allow setting window properties from worker script.

Simplify messaging between UI and worker threads

v0.0.2

Simplified messaging between worker and UI

Initial test release

Enables you to:

• Run from executable jar (assuming you have JRE installed) to see demo app
• Unpack demo JavaScript files
• Restart in dev mode using unpacked files
• Make some changes to demo files (JavaScript/HTML/CSS)
• Repackage your changes to new executable jar