since ln was not using the -h it was following the target symlink
destination and deciding it was a destination directory. madness
ensued.
also test cleanup and more output and change linkables to use sets
Options can be passed on the command-line and/or using
the HOMEBREW_CASK_OPTS environment variable (which has
lowest priority). There is a single --appdir=PATH option
right now, but this commit enables future awesomeness!
Other minor changes:
* `brew cask help` now returns the same thing as `brew cask`
instead of saying there was “no such command as help”.
* The HEREDOC block now uses Homebrew's #undent instead of the
customed-rolled #gsub version. Cleaner and more flexible.
* `Cask.set_appdir` has been renamed to `Cask.appdir=`. This
is more Rubyish, and of little consequence (the only place
it was previously used was in the tests).
homebrew does internal caching in ARGV that prevents us from doing the
`ARGV.clear; ARGV << 'newarg'` trick twice.
rather than try to further reach in to homebrew's innards, i figure it's
better to just pass multiple arguments down to homebrew code at once,
since it already supports that
refs #47
this delegates to homebrew's uninstall to get its work done. vanilla
`brew uninstall` actually works, but this gives us a more consistent
interface.
as discussed in #47
