Release 1.9.2

Either download the gog-downloader php binary below or use docker image rikudousage/gog-downloader:1.9.2.
If you're on Windows, you can also download the GogDownloaderSetup.exe installer.

What's Changed

• Fix: Make getting URL nullable by @RikudouSage in #41
• Debug: Add verbose output by @RikudouSage in #42
• Fix: Skip fetching already locally stored information by @RikudouSage in #43

Full Changelog: v1.9.1...v1.9.2