Wire up .hss file type associations on Windows

[jakepetroules]

The NSIS installer must assign the .hss file type to the AXR Browser application.

[Ragnis]

I don't think this is such a good idea. It's kind of like XML files
automatically opening in the browser. Nobody wants that.

When people open a HSS file directly, they want to see it in a text
editor.

[jakepetroules]

Applications register to handle specific file types without necessarily being the default handler... meaning you can have things like the right click > "Open With..." menu displaying your application, while double click or "Open" will open the file with its default handler, which may or may not be a different application.

There's also the possibility to allow the user to choose whether to assign AXR Browser as the default handler for related file types (many installers do this).

[Mouvedia]

+1 jake