Require ruby 22 (#416)

* require ruby 2.2+

* replace ruby 1.9.3 to 2.2

Author: KazuCocoa

android_tests/readme.md

@@ -1,7 +1,7 @@
 ruby_lib_android
 =====================
 
-ruby_lib's Android tests. Requires `Ruby 1.9.3` or better.
+ruby_lib's Android tests. Requires `Ruby 2.2+` or better.
 
 - `rake install` Install gems required to run the tests.
 - `rake android` Run all tests.

appium_lib.gemspec

@@ -1,13 +1,12 @@
 require_relative 'lib/appium_lib/common/version'
 
 Gem::Specification.new do |s|
-  # 1.8.x is not supported
-  s.required_ruby_version = '>= 1.9.3'
+  s.required_ruby_version = '>= 2.2'
 
   s.name          = 'appium_lib'
   s.version       = Appium::VERSION
   s.date          = Appium::DATE
-  s.license       = 'http://www.apache.org/licenses/LICENSE-2.0.txt'
+  s.license       = 'Apache'
   s.description   = s.summary = 'Ruby library for Appium'
   s.description   += '.' # avoid identical warning
   s.authors       = s.email = ['code@bootstraponline.com']

ios_tests/readme.md

@@ -1,7 +1,7 @@
 ruby_lib_ios
 =====================
 
-ruby_lib's iOS tests. Requires `Ruby 1.9.3` or better.
+ruby_lib's iOS tests. Requires `Ruby 2.2+` or better.
 
 - `rake install` Install gems required to run the tests.
 - `rake ios` Run all tests.

readme.md

@@ -16,7 +16,8 @@
 
 Helper methods for writing cross platform (iOS, Android) tests in Ruby using Appium. Note that user waits should not exceed 120 seconds if they're going to run on Sauce Labs.
 
-Make sure you're using Appium 1.0.0 or newer and Ruby 1.9.3+ with upgraded rubygems and bundler.
+Make sure you're using Appium 1.0.0 or newer and Ruby 2.2+ with upgraded rubygems and bundler.
+(XCUITest for iOS requires over Appium 1.6.0)
 
 #### Start appium server