- Use Node instead of lbrynet to get platform info
- Factor out code that picks the download URI into its own function
- Remove out-of-date code for checking old versions of MacOS
- Manually call xdg-open instead of using shell.openItem(), which
doesn't reliably work from the main process
- If there's a connection error or timeout when asking the daemon
to close, fall back on force killing
- Now asks the daemon to close, even if it wasn't started by the same
app
- Improved UX during upgrade process (cancel buttons, final dialog
where you approve the update, etc.)
- Saves updates in temp directory, closes app and launches the installer
