Bring back intellij-idea 2016.1 (#3714)
Bring back intellij-idea 2016.1 (#3714)

After removal in https://github.com/caskroom/homebrew-versions/pull/3683
wickedsp1d3r/homebrew-versions,bey2lah/homebrew-versions,Ngrd/homebrew-versions,victorpopkov/homebrew-versions,rogeriopradoj/homebrew-versions,Ngrd/homebrew-versions,mahori/homebrew-cask-versions,rogeriopradoj/homebrew-versions,404NetworkError/homebrew-versions,yurikoles/homebrew-versions,danielbayley/homebrew-versions,lantrix/homebrew-versions,pkq/homebrew-versions,caskroom/homebrew-versions,FinalDes/homebrew-versions,FinalDes/homebrew-versions,pkq/homebrew-versions,caskroom/homebrew-versions,404NetworkError/homebrew-versions,wickedsp1d3r/homebrew-versions,yurikoles/homebrew-versions,bey2lah/homebrew-versions,mahori/homebrew-versions,danielbayley/homebrew-versions,victorpopkov/homebrew-versions,lantrix/homebrew-versions