Update tunnelblick-beta 3.7.4beta01,4890 auto_updates and homepage (#4648)
Update tunnelblick-beta 3.7.4beta01,4890 auto_updates and homepage (#4648)

* Update tunnelblick-beta to 3.7.4beta01,4890

* Update tunnelblick-beta 3.7.4beta01,4890 auto_updates and homepage

Added auto_updates to tunnelblick-beta because many updates are security related.

Standardized homepage link with tunnelblick from homebrew-cask.

caskroom/homebrew-versions,rogeriopradoj/homebrew-versions,victorpopkov/homebrew-versions,FinalDes/homebrew-versions,404NetworkError/homebrew-versions,mahori/homebrew-versions,Ngrd/homebrew-versions,lantrix/homebrew-versions,victorpopkov/homebrew-versions,Ngrd/homebrew-versions,yurikoles/homebrew-versions,rogeriopradoj/homebrew-versions,pkq/homebrew-versions,pkq/homebrew-versions,mahori/homebrew-cask-versions,FinalDes/homebrew-versions,404NetworkError/homebrew-versions,caskroom/homebrew-versions,lantrix/homebrew-versions,yurikoles/homebrew-versions