Added ruby 2.2.2 support, and stopped the beeping

.ruby-version

@@ -1 +1 @@
-ruby-2.1.1
+ruby-2.2.2

Gemfile

@@ -2,3 +2,5 @@ source 'https://rubygems.org'
 
 # Specify your gem's dependencies in ruby-ev3.gemspec
 gemspec
+
+gem 'artoo-joystick'

examples/xbox_controller_robot.rb

@@ -1,6 +1,6 @@
 require 'rubygems'
 require 'ev3'
-require 'ev3/connections/wifi'
+require 'ev3/connections/bluetooth'
 require 'artoo'
 
 INTERVAL = 0.1
@@ -22,9 +22,9 @@ class Robot
   MAX_TURN = 40
 
   def initialize
-    @brick = EV3::Brick.new(EV3::Connections::Wifi.new)
+    @brick = EV3::Brick.new(EV3::Connections::Bluetooth.new)
     @brick.connect
-    @brick.beep
+    # @brick.beep
 
     motors.each do |motor|
       motor.stop
@@ -231,4 +231,4 @@ def signed_to_percentage(number)
     puts "trigger lt: #{value[1]}"
     handler.trigger_lt(value[1])
   }
-end
+end

ruby-ev3.gemspec

@@ -8,8 +8,8 @@ Gem::Specification.new do |spec|
   spec.version       = EV3::VERSION
   spec.authors       = ["Justin Cunningham"]
   spec.email         = ["[email protected]"]
-  spec.summary       = %q{TODO: Write a short summary. Required.}
-  spec.description   = %q{TODO: Write a longer description. Optional.}
+  spec.summary       = %q{Gem for controlling the EV3 lego robot.}
+  spec.description   = %q{Gem for controlling the EV3 lego robot.}
   spec.homepage      = ""
   spec.license       = "MIT"