update gemspec, add rubygems badge, bump version

Author: andreaseger

README.md

@@ -1,5 +1,6 @@
 # Codeqa
 
+[![Gem Version](https://badge.fury.io/rb/codeqa.svg)](http://badge.fury.io/rb/codeqa)
 [![Build Status](https://travis-ci.org/experteer/codeqa.svg?branch=master)](https://travis-ci.org/experteer/codeqa)
 [![Coverage Status](https://img.shields.io/coveralls/experteer/codeqa.svg)](https://coveralls.io/r/experteer/codeqa)
 [![Code Climate](https://codeclimate.com/github/experteer/codeqa/badges/gpa.svg)](https://codeclimate.com/github/experteer/codeqa)

codeqa.gemspec

@@ -3,10 +3,11 @@ require File.expand_path('../lib/codeqa/version', __FILE__)
 
 Gem::Specification.new do |gem|
   gem.authors       = ['Peter Schrammel', 'Andreas Eger']
-  gem.email         = ['peter.schrammel@experteer.com', 'andreas.eger@experteer.com']
+  gem.email         = ['peter.schrammel@experteer.com', 'dev@eger-andreas.de']
   gem.description   = 'Checks your code (esp Rails) for common errors'
   gem.summary       = 'Code checker'
-  gem.homepage      = ''
+  gem.homepage      = 'https://github.com/experteer/codeqa'
+  gem.license       = 'MIT'
 
   gem.files         = `git ls-files`.split($\)
   gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
@@ -15,6 +16,8 @@ Gem::Specification.new do |gem|
   gem.require_paths = ['lib']
   gem.version       = Codeqa::VERSION
 
+  gem.required_ruby_version = '>= 2.0'
+
   gem.add_development_dependency 'rake'
   gem.add_development_dependency 'rspec', '>=3.0'
   gem.add_development_dependency 'yard'

lib/codeqa/version.rb

@@ -1,3 +1,3 @@
 module Codeqa
-  VERSION = '0.3.0'
+  VERSION = '0.3.1'
 end