Added command to display current version of homesick.

lib/homesick.rb

@@ -4,9 +4,11 @@ require 'thor'
 class Homesick < Thor
   autoload :Shell, 'homesick/shell'
   autoload :Actions, 'homesick/actions'
+  autoload :Version, 'homesick/version'
 
   include Thor::Actions
   include Homesick::Actions
+  include Homesick::Version
 
   add_runtime_options!
 
@@ -15,6 +17,9 @@ class Homesick < Thor
 
   DEFAULT_CASTLE_NAME = 'dotfiles'
 
+  map '-v' => :version
+  map '--version' => :version
+
   def initialize(args = [], options = {}, config = {})
     super
     self.shell = Homesick::Shell.new
@@ -264,6 +269,11 @@ class Homesick < Thor
     end
   end
 
+  desc 'version', 'Display the current version of homesick'
+  def version
+    say Homesick::Version::STRING
+  end
+
   protected
 
   def home_dir