Release v20.8.0

20.8.0

• added new scripting methods cacheDir and clearCacheDir
  (for #1838, thank you @r00tr4v3n)
  • please take a look at the documentation for
    cacheDir
    and clearCacheDir
    for more information
• added more translation (thank you rawfreeamy, i****myself, mlimacarlos,
  rakekniven, Zack-83, Gregory.K)