creating ruby-format gemspecs. Fixes Gem.dir not being at the front
of Gem.path to fix uninstall and cleanup commands. Fixes gem
uninstall stopping on the first missing gem.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33074 b2dd03c8-39d4-4d8f-98ff-823fe69b080e