Update to rake-compiler-dock 0.5.0 to enable ruby-2.3 cross build.

Gemfile

@@ -7,11 +7,12 @@ source "https://rubygems.org/"
 gem "mini_portile", "~>0.6"
 
 gem "rdoc", "~>4.0", :group => [:development, :test]
+gem "hoe-bundler", "~>1.2", :group => [:development, :test]
 gem "rake-compiler", "~>0.9", :group => [:development, :test]
-gem "rake-compiler-dock", "~>0.4.3", :group => [:development, :test]
+gem "rake-compiler-dock", "~>0.5.0", :group => [:development, :test]
 gem "opengl", "~>0.8", :group => [:development, :test]
 gem "glu", "~>8.0", :group => [:development, :test]
 gem "test-unit", "~>3.1", :group => [:development, :test]
-gem "hoe", "~>3.13", :group => [:development, :test]
+gem "hoe", "~>3.14", :group => [:development, :test]
 
 # vim: syntax=ruby

Rakefile

@@ -69,8 +69,9 @@ hoe = Hoe.spec "fxruby" do
   self.readme_file = 'README.rdoc'
   self.extra_rdoc_files << self.readme_file
   self.extra_deps << ['mini_portile', '~> 0.6']
+  self.extra_dev_deps << ['hoe-bundler', '~> 1.2']
   self.extra_dev_deps << ['rake-compiler', '~> 0.9']
-  self.extra_dev_deps << ['rake-compiler-dock', '~> 0.4.3']
+  self.extra_dev_deps << ['rake-compiler-dock', '~> 0.5.0']
   self.extra_dev_deps << ['opengl', '~> 0.8']
   self.extra_dev_deps << ['glu', '~> 8.0']
   self.extra_dev_deps << ['test-unit', '~> 3.1']