WiMP has now been superseded by Tidal, with a new app, new homepage and new download URL. I don't really know if my changes to this script will work with Homebrew Cask (i've never done this before), but i've made the changes so that they reflect
1. the new homepage
2. the new download URL
3. the fact that the download-file has no version number in the file name
4. the fact that the app is now auto-updating and i'm not aware of any feed to get updates
I'm not quite sure about what to do with the checksum, sorry.