Updated: ruby-hitimes 2.0.0, ruby-kgio 2.11.4, ruby-mysql2 0.5.5, ruby-nio4r 2.5.9

[Daisuke Fujimura]

The following packages have been uploaded to the Cygwin distribution:

* ruby-hitimes 2.0.0-1
* ruby-kgio 2.11.4-1
* ruby-mysql2 0.5.5-1
* ruby-nio4r 2.5.9-1