/usr/lib/ruby and keep arch-dependent modules in /usr/lib64/ruby for
64bit arch. so 'rubylibdir', 'sitelibdir' and 'sitedir' on
Config::CONFIG points to /usr/lib/ruby now. (#184199)
- Build-Requires xorg-x11-devel instead of XFree86-devel.
- ruby-multilib.patch: applied for only 64-bit archs.
- ruby-1.8.2-xmlrpc-CAN-2005-1992.patch: removed. it has already been in
upstream.