FolderSwitch 1.9.0

1.9.0 — Updates from GitHub releases (FOS-0011): installed copies look for updates in the GitHub releases of kbuleon/FolderSwitch (stable ones, no token) instead of a feed folder; the localhost test address is gone, and any address that is not that of a GitHub repository turns the check off. A « Check for updates automatically » box in the settings, ticked by default, unticked stops the automatic checks (the first one a minute after the start, then daily) at once, without a restart (the « Check for updates » button still works, and an import brings its value); the configuration stays schema 2, and a 1.8.0 ignores the setting. build/release.ps1 (Prepare, Publish, All) tests, tags v<version> and publishes a release with the CHANGELOG.md entry as notes; pack.ps1 -ReleaseNotes. Nine languages.