Upgrade from `0.30` to `0.34`. Add `link` line.
Add Sketch Up (version 8) Cask
Merge pull request #364 from jfsiii/feature-update-hipchat

Upgrade HipChat from `0.30` to `0.34`. Add `link` line.
Merge branch 'sketchup' of https://github.com/acollign/homebrew-cask into acollign-sketchup
Removed blank line before 'link'