Add Google Chrome application
Set default ruby version to use

This are set with chruby <version> in the profile scripts.
Also extract default ruby version as a constant.
Running chruby in a before {} does not work
Check that the correct ruby is in path
Append to, not overwrite, profile files
Check for chruby, auto and ruby version

These must all be in the profile files to meet the recipe.
Extract method for hook directory
Add 'up' as git sub command
Add Fantastical application
Add iTerm2 application
Allow Stay to use the Accessibility API
Add Java 8