Make ruby gem install to user-install by default
Installing gem's system-wide doesn't make sense 99% of the time...
- Linux -- Need root access via sudo
- Windows -- Need administrator
- Max OS X -- Need root access via sudo
- Haiku -- /boot/system read-only
gem currently installs gems system-wide by default
Since the most common use-case is to install gems for your own
user, why doesn't gem --user-directory by default?
Tools like rvm already set this manually.
Making --user-directory default means package maintainers only
need to --no-user-directory while everyone else just gem install's