Add JRuby-specific files to the Gemfile for JRuby on Windows

Gemfile

@@ -1,3 +1,6 @@
+require "rbconfig"
+platform = RbConfig::CONFIG["host_os"].downcase
+
 source "http://rubygems.org"
 
 gem "vagrant", :path => '.'
@@ -6,6 +9,11 @@ gem "vagrant", :path => '.'
 # typically coincides with it
 gem "virtualbox", :git => "git://github.com/mitchellh/virtualbox.git"
 
+if platform.include?("mingw") || platform.include?("mswin")
+  gem "jruby-openssl", "~> 0.7.4", :platforms => :jruby
+  gem "jruby-win32ole", "~> 0.8.5", :platforms => :jruby
+end
+
 group :test do
   gem "rake"
   gem "contest", ">= 0.1.2"