Added Ruby Gem and Bundler support

Gemfile

@@ -0,0 +1,3 @@
+source 'https://rubygems.org'
+
+gemspec

README.md

@@ -7,8 +7,8 @@ This package allows a web developer to quickly add Duo's interactive, self-servi
 What's here:
 
 * `js` - Duo Javascript library, to be hosted by your webserver.
-* `duo_web.rb` - Duo Ruby SDK to be integrated with your web application
-* `test.rb` -  Unit tests for our SDK
+* `lib/duo_web.rb` - Duo Ruby SDK to be integrated with your web application
+* `test/test_duo_web.rb` -  Unit tests for our SDK
 
 # Installing
 
@@ -19,31 +19,31 @@ $ git clone https://github.com/duosecurity/duo_ruby.git
 # Using
 
 ```
-$ irb -r ./duo_web.rb
+$ irb -r ./lib/duo_web.rb
 irb(main):001:0> Duo.sign_request(ikey, skey, akey, username)
 => "TX|...TX_SIGNATURE...==|...TX_HASH...:APP|...APP_SIGNATURE...==|...APP_HASH..."
 ```
 
 # Testing
 
 ```
-$ ruby test.rb
-Loaded suite test
+$ rake
+Loaded suite /usr/lib/ruby/vendor_ruby/rake/rake_test_loader
 Started
 ..
 
-Finished in 0.001666831 seconds.
+Finished in 0.001006152 seconds.
 ---------------------------------------------------------------------------------------
 2 tests, 13 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
 100% passed
 ---------------------------------------------------------------------------------------
-1199.88 tests/s, 7799.23 assertions/s
+1987.77 tests/s, 12920.51 assertions/s
 ```
 
 # Linting
 
 ```
-$ rubocop duo_web.rb
+$ rubocop
 ```
 
 # Support

Rakefile

@@ -0,0 +1,8 @@
+require 'rake/testtask'
+
+Rake::TestTask.new do |t|
+  t.libs << 'test'
+end
+
+desc 'Run tests'
+task :default => :test

duo_web.gemspec

@@ -0,0 +1,17 @@
+Gem::Specification.new do |s|
+  s.name        = 'duo_web'
+  s.version     = '1.0.0'
+  s.summary     = 'Duo Web Ruby'
+  s.description = 'A Ruby implementation of the Duo Web SDK.'
+  s.email       = 'support@duo.com'
+  s.homepage    = 'https://github.com/duosecurity/duo_ruby'
+  s.license     = 'BSD-3-Clause'
+  s.authors     = ['Duo Security']
+  s.files       = [
+    'lib/duo_web.rb',
+    'js/Duo-Web-v2.js',
+    'js/Duo-Web-v2.min.js'
+  ]
+  s.add_development_dependency 'rake', '~> 0'
+  s.add_development_dependency 'rubocop', '~> 0'
+end

test.rb → test/test_duo_web.rb

@@ -1,5 +1,5 @@
 require 'test/unit'
-require_relative 'duo_web'
+require 'duo_web'
 
 IKEY = 'DIXXXXXXXXXXXXXXXXXX'.freeze
 WRONG_IKEY = 'DIXXXXXXXXXXXXXXXXXY'.freeze