Reorganize the code into separate files

Gemfile

@@ -0,0 +1,3 @@
+source "http://rubygems.org"
+
+gemspec

Gemfile.lock

@@ -0,0 +1,16 @@
+PATH
+  remote: .
+  specs:
+    gnuplot (2.6.1)
+
+GEM
+  remote: http://rubygems.org/
+  specs:
+    rake (10.1.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  gnuplot!
+  rake

Rakefile

@@ -1,12 +1,5 @@
-require 'jeweler2'
-Jeweler::Tasks.new do |s|
-  s.name = 'gnuplot'
-  s.description = s.summary = "Utility library to aid in interacting with gnuplot from ruby"
-  s.version = "2.6.1"
-  s.authors='roger pack'
-  s.email = "[email protected]"
-  s.homepage = "http://github.com/rdp/ruby_gnuplot/tree/master"
-end
+require 'bundler'
+Bundler::GemHelper.install_tasks
 
 desc 'run unit tests'
 task :test do
@@ -16,4 +9,4 @@ task :test do
   end
 end
 
-Jeweler::RubygemsDotOrgTasks.new
+task :default => :test

gnuplot.gemspec

@@ -0,0 +1,14 @@
+# -*- encoding: utf-8 -*-
+$:.push File.expand_path("../lib", __FILE__)
+require "gnuplot/version"
+
+Gem::Specification.new do |s|
+  s.name        = 'gnuplot'
+  s.description = s.summary = "Utility library to aid in interacting with gnuplot from ruby"
+  s.version     = Gnuplot::VERSION
+  s.authors     = 'roger pack'
+  s.email       = "[email protected]"
+  s.homepage    = "http://github.com/rdp/ruby_gnuplot/tree/master"
+
+  s.add_development_dependency 'rake'
+end