Get array of args instead of string
Merge pull request #6 from jtolsma/useraddfix

Get array of args instead of string for user invite
Remove rdoc stuff from Rakefile

This was cargo culted to begin with and I don't think we are making
any real use of such doc tooling at the present time. Using rdoc in
this way was preventing successful gem builds for users with newer gem
versions.
Merge branch 'master' into groupaddfix