update gemspec file

github_changelog_generator.gemspec

@@ -1,22 +1,31 @@
-Gem::Specification.new do |s|
+# coding: utf-8
-  s.name               = "github_changelog_generator"
-  s.version            = GitHubChangelogGenerator::VERSION
-  s.default_executable = "github_changelog_generator"
 
-  s.required_ruby_version     = '>= 1.9.3'
+lib = File.expand_path('../lib', __FILE__)
-  s.authors = ["Petr Korolev"]
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
-  s.date = `date +"%Y-%m-%d"`.strip!
-  s.description = %q{Script, that automatically generate change-log from your tags and pull-requests}
-  s.email = %q{sky4winder+github_changelog_generator@gmail.com}
-  s.files = ["lib/github_changelog_generator.rb", "lib/github_changelog_generator/parser.rb", "bin/github_changelog_generator"]
-  s.homepage = %q{https://github.com/skywinder/Github-Changelog-Generator}
-  s.require_paths = ["lib"]
-  s.rubygems_version = %q{1.6.2}
-  s.summary = %q{Script, that automatically generate change-log from your tags and pull-requests.}
-  s.license       = "MIT"
-  s.add_runtime_dependency(%q<httparty>, ["~> 0.13"])
-  s.add_runtime_dependency(%q<github_api>, ["~> 0.12"])
-  s.add_runtime_dependency(%q<colorize>, ["~> 0.7"])
 
-  s.executables   = %w(github_changelog_generator)
+require 'github_changelog_generator/version'
+
+Gem::Specification.new do |spec|
+  spec.name               = "github_changelog_generator"
+  spec.version            = GitHubChangelogGenerator::VERSION
+  spec.default_executable = "github_changelog_generator"
+
+  spec.required_ruby_version     = '>= 1.9.3'
+  spec.authors = ["Petr Korolev"]
+  spec.email = %q{sky4winder+github_changelog_generator@gmail.com}
+  spec.date = `date +"%Y-%m-%d"`.strip!
+  spec.summary = %q{Script, that automatically generate change-log from your tags and pull-requests.}
+  spec.description = %q{Script, that automatically generate change-log from your tags and pull-requests}
+  spec.homepage = %q{https://github.com/skywinder/Github-Changelog-Generator}
+  spec.license       = "MIT"
+
+  spec.files = `git ls-files -z`.split("\x0")
+  spec.rubygems_version = %q{1.6.2}
+  spec.require_paths = ["lib"]
+
+  spec.add_runtime_dependency(%q<httparty>, ["~> 0.13"])
+  spec.add_runtime_dependency(%q<github_api>, ["~> 0.12"])
+  spec.add_runtime_dependency(%q<colorize>, ["~> 0.7"])
+
+  spec.executables   = %w(github_changelog_generator)
 end

lib/github_changelog_generator.rb

@@ -5,6 +5,7 @@ require 'json'
 require 'httparty'
 require 'colorize'
 require_relative 'github_changelog_generator/parser'
+require_relative 'github_changelog_generator/version'
 
 module GitHubChangelogGenerator
   class ChangelogGenerator