Added support for building on Appveyor
Added support for building on Appveyor

MisumiRize/jruby-gradle-plugin,MisumiRize/jruby-gradle-plugin,MisumiRize/jruby-gradle-plugin,raelik/jruby-gradle-plugin,jamescway/jruby-gradle-plugin,raelik/jruby-gradle-plugin,jamescway/jruby-gradle-plugin,raelik/jruby-gradle-plugin,jamescway/jruby-gradle-plugin