Fixed some broken packages

This is a correction of https://github.com/ferventcoder/chocolateyautomaticpackages/pull/62

I fixed several broken packages. Most of them were broken because Filehippo changed its layout and therefore Ketarin is no longer able to use it. This makes the “FileHippo ID” functionality of Ketarin useless, see this this thread: https://ketarin.org/forum/topic/3403-updates-using-filehippo-id/

The fixed packages are:
* attributechanger (Was not broken, but I added the needed HTTP referer to the Ketarin job, so the file can be downloaded with Ketarin)
* filezilla (Used FileHippo ID)
* filezilla.commandline (Used SourceForge mirror was offline)
* paint.net (Used FileHippo ID)
* skype (Used FileHippo ID)
* vlc (Used FileHippo ID)