Properly locate RubyGems version when packaging.
Properly locate RubyGems version when packaging.

Patch by Bosko Ivanisevic.

modulexcite/rubyinstaller,vemmaverve/rubyinstaller,leonhooijer/rubyinstaller,modulexcite/rubyinstaller,dreamauya/rubyinstaller,zorosteven/rubyinstaller,suvarnaraju/rubyinstaller,haonaturel/rubyinstaller,modulexcite/rubyinstaller,haonaturel/rubyinstaller,zorosteven/rubyinstaller,Rugbyman21/rubyinstaller,oneclick/rubyinstaller,jahanzaibbahadur/rubyinstaller,jahanzaibbahadur/rubyinstaller,vemmaverve/rubyinstaller,dreamauya/rubyinstaller,auyaauya/rubyinstaller,oneclick/rubyinstaller,leonhooijer/rubyinstaller,oneclick/rubyinstaller,vemmaverve/rubyinstaller,shirosaki/rubyinstaller,haonaturel/rubyinstaller,Rugbyman21/rubyinstaller,leonhooijer/rubyinstaller,jaym/rubyinstaller,auyaauya/rubyinstaller,suvarnaraju/rubyinstaller,suvarnaraju/rubyinstaller,jahanzaibbahadur/rubyinstaller,shirosaki/rubyinstaller,jaym/rubyinstaller,dreamauya/rubyinstaller,auyaauya/rubyinstaller,Rugbyman21/rubyinstaller,jaym/rubyinstaller,zorosteven/rubyinstaller,shirosaki/rubyinstaller