diff --git a/Gemfile b/Gemfile
index b8803583..b028e87d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,6 +3,7 @@ source 'http://gemcutter.org'
 
 disable_system_gems
 
+gem "git",              "1.2.5"
 gem "rake",             "0.8.7"
 gem "rspec",            "1.2.9"
 gem "diff-lcs",         "1.1.2"
diff --git a/Rakefile b/Rakefile
index a7fd9ee3..1349fa3e 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,43 +1,5 @@
 require "rubygems"
 
-begin
-  require 'jeweler'
-rescue LoadError
-  desc "Install gem using sudo"
-  task(:install) do
-    $stderr.puts "Jeweler not available. `gem install jeweler` to install this gem"
-  end
-else
-  Jeweler::Tasks.new do |s|
-    s.name      = "webrat"
-    s.author    = "Bryan Helmkamp"
-    s.email     = "bryan" + "@" + "brynary.com"
-    s.homepage  = "http://github.com/brynary/webrat"
-    s.summary   = "Ruby Acceptance Testing for Web applications"
-    s.description  = <<-EOS.strip
-Webrat lets you quickly write expressive and robust acceptance tests
-for a Ruby web application. It supports simulating a browser inside
-a Ruby process to avoid the performance hit and browser dependency of
-Selenium or Watir, but the same API can also be used to drive real
-Selenium tests when necessary (eg. for testing AJAX interactions).
-Most Ruby web frameworks and testing frameworks are supported.
-    EOS
-
-    s.rubyforge_project = "webrat"
-    s.extra_rdoc_files = %w[README.rdoc MIT-LICENSE.txt History.txt]
-
-    # Dependencies
-    s.add_dependency "nokogiri", ">= 1.2.0"
-    s.add_dependency "rack", ">= 1.0"
-
-    s.add_development_dependency "rails", ">= 2.3"
-    s.add_development_dependency "merb-core", ">= 1.0"
-    s.add_development_dependency "launchy"
-  end
-
-  Jeweler::RubyforgeTasks.new
-end
-
 begin
   require 'spec/rake/spectask'
 rescue LoadError
@@ -180,9 +142,4 @@ task :whitespace do
   sh %{find . -name '*.rb' -exec sed -i '' 's/ *$//g' {} \\;}
 end
 
-if defined?(Jeweler)
-  task :spec => :check_dependencies
-  task :build => :gemspec
-end
-
 task :default => :spec
\ No newline at end of file
diff --git a/Thorfile b/Thorfile
new file mode 100644
index 00000000..8ceeac2b
--- /dev/null
+++ b/Thorfile
@@ -0,0 +1,117 @@
+module GemHelpers
+
+  def generate_gemspec
+    $LOAD_PATH.unshift(File.expand_path(File.join(File.dirname(__FILE__), "lib")))
+    require "webrat"
+
+    Gem::Specification.new do |s|
+      s.name      = "webrat"
+      s.version   = Webrat::VERSION
+      s.author    = "Bryan Helmkamp"
+      s.email     = "bryan@brynary.com"
+      s.homepage  = "http://github.com/brynary/webrat"
+      s.summary   = "Ruby Acceptance Testing for Web applications"
+      s.description  = <<-EOS.strip
+Webrat lets you quickly write expressive and robust acceptance tests
+for a Ruby web application. It supports simulating a browser inside
+a Ruby process to avoid the performance hit and browser dependency of
+Selenium or Watir, but the same API can also be used to drive real
+Selenium tests when necessary (eg. for testing AJAX interactions).
+Most Ruby web frameworks and testing frameworks are supported.
+      EOS
+      s.rubyforge_project = "webrat"
+
+      require "git"
+      repo = Git.open(".")
+
+      s.files      = normalize_files(repo.ls_files.keys - repo.lib.ignored_files)
+      s.test_files = normalize_files(Dir['spec/**/*.rb'] - repo.lib.ignored_files)
+
+      s.has_rdoc = true
+      s.extra_rdoc_files = %w[README.rdoc MIT-LICENSE.txt History.txt]
+
+      s.add_dependency "nokogiri", ">= 1.2.0"
+      s.add_dependency "rack", ">= 1.0"
+    end
+  end
+
+  def normalize_files(array)
+    # only keep files, no directories, and sort
+    array.select do |path|
+      File.file?(path)
+    end.sort
+  end
+
+  # Adds extra space when outputting an array. This helps create better version
+  # control diffs, because otherwise it is all on the same line.
+  def prettyify_array(gemspec_ruby, array_name)
+    gemspec_ruby.gsub(/s\.#{array_name.to_s} = \[.+?\]/) do |match|
+      leadin, files = match[0..-2].split("[")
+      leadin + "[\n    #{files.split(",").join(",\n   ")}\n  ]"
+    end
+  end
+
+  def read_gemspec
+    @read_gemspec ||= eval(File.read("webrat.gemspec"))
+  end
+
+  def sh(command)
+    puts command
+    system command
+  end
+end
+
+class Default < Thor
+  include GemHelpers
+
+  desc "gemspec", "Regenerate webrat.gemspec"
+  def gemspec
+    File.open("webrat.gemspec", "w") do |file|
+      gemspec_ruby = generate_gemspec.to_ruby
+      gemspec_ruby = prettyify_array(gemspec_ruby, :files)
+      gemspec_ruby = prettyify_array(gemspec_ruby, :test_files)
+      gemspec_ruby = prettyify_array(gemspec_ruby, :extra_rdoc_files)
+
+      file.write gemspec_ruby
+    end
+
+    puts "Wrote gemspec to webrat.gemspec"
+    read_gemspec.validate
+  end
+
+  desc "build", "Build a webrat gem"
+  def build
+    sh "gem build webrat.gemspec"
+    FileUtils.mkdir_p "pkg"
+    FileUtils.mv read_gemspec.file_name, "pkg"
+  end
+
+  desc "install", "Install the latest built gem"
+  def install
+    sh "gem install --local pkg/#{read_gemspec.file_name}"
+  end
+
+  desc "release", "Release the current branch to GitHub and Gemcutter"
+  def release
+    gemspec
+    build
+    Release.new.tag
+    Release.new.gem
+  end
+end
+
+class Release < Thor
+  include GemHelpers
+
+  desc "tag", "Tag the gem on the origin server"
+  def tag
+    release_tag = "v#{read_gemspec.version}"
+    sh "git tag -a #{release_tag} -m 'Tagging #{release_tag}'"
+    sh "git push origin #{release_tag}"
+  end
+
+  desc "gem", "Push the gem to Gemcutter"
+  def gem
+    sh "gem push pkg/#{read_gemspec.file_name}"
+  end
+end
\ No newline at end of file
diff --git a/VERSION b/VERSION
deleted file mode 100644
index 4b9fcbec..00000000
--- a/VERSION
+++ /dev/null
@@ -1 +0,0 @@
-0.5.1