Improvements were done

- Ruby 2.2.3 version was added
- Rails 4.2.3 version was added
- Gemfile.lock was removed
- Gemspec was improved

.gitignore

@@ -2,4 +2,5 @@
 *.gem
 *.log
 .bundle/
-*.bundle/install.log
+*.bundle/install.log
+Gemfile.lock

.ruby-version

@@ -0,0 +1 @@
+2.2.3

cybele.gemspec

@@ -1,26 +1,28 @@
-# coding: utf-8
+# encoding: utf-8
 lib = File.expand_path('../lib', __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require File.expand_path('../lib/cybele/version', __FILE__)
+require 'date'
 
 Gem::Specification.new do |spec|
-  spec.name          = 'cybele'
-  spec.version       = Cybele::VERSION
-  spec.authors       = %w[lab2023]
-  spec.email         = %w[info@lab2023.com]
-  spec.description   = %q{Rails 4.x template with responder, simple form, haml, exception notification, etc etc ...}
-  spec.summary       = %q{Rails 4.x template with responder, simple form, haml, exception notification, etc etc ...}
-  spec.homepage      = 'https://github.com/kebab-project/cybele'
-  spec.license       = 'MIT'
+  spec.name         = 'cybele'
+  spec.version      = Cybele::VERSION
+  spec.authors      = %w[lab2023]
+  spec.email        = %w[info@lab2023.com]
+  spec.description  = %q{Rails 4.x template with responder, simple form, haml, exception notification, etc etc ...}
+  spec.summary      = %q{Rails 4.x template with responder, simple form, haml, exception notification, etc etc ...}
+  spec.homepage     = 'https://github.com/kebab-project/cybele'
+  spec.license      = 'MIT'
+  spec.date         = Date.today.strftime('%Y-%m-%d')
 
-  spec.required_ruby_version = '>= 2.0.0'
+  spec.required_ruby_version = ">= #{Cybele::RUBY_VERSION}"
   spec.add_dependency 'bundler', '~> 1.5'
-  spec.add_dependency 'rails', '~> 4.0'
+  spec.add_dependency 'rails', Cybele::RAILS_VERSION
 
-  spec.files         = `git ls-files`.split($/)
-  spec.executables   = %w[cybele]
-  spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
-  spec.require_paths = %w[lib]
+  spec.files        = `git ls-files`.split($/)
+  spec.executables  = %w[cybele]
+  spec.test_files   = spec.files.grep(%r{^(test|spec|features)/})
+  spec.require_paths= %w[lib]
 
   spec.add_development_dependency 'rake'
 

lib/cybele/version.rb

@@ -1,4 +1,5 @@
 module Cybele
+  RAILS_VERSION = '~> 4.2.3'
+  RUBY_VERSION = IO.read("#{File.dirname(__FILE__)}/../../.ruby-version").strip
   VERSION = '1.6.2'.freeze
-end
-
+end