title: Require 'git' produce error
body: <p>if i try to use <code>require 'git'</code> i get the following error</p>
  
  <pre><code>    C:/Ruby193/lib/ruby/gems/1.9.1/gems/git-1.2.9.1/lib/git/lib.rb:917:in `command': git  version   2&gt;&amp;1:Der Befehl "git" ist entweder falsch geschrieben oder (Git::GitExecuteError)
  konnte nicht gefunden werden.
          from C:/Ruby193/lib/ruby/gems/1.9.1/gems/git-1.2.9.1/lib/git/lib.rb:824:in `current_command_version'
          from C:/Ruby193/lib/ruby/gems/1.9.1/gems/git-1.2.9.1/lib/git/lib.rb:834:in `meets_required_version?'
          from C:/Ruby193/lib/ruby/gems/1.9.1/gems/git-1.2.9.1/lib/git.rb:25:in `&lt;top (required)&gt;'
          from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:60:in `require'
          from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:60:in `rescue in require'
          from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:35:in `require'
          from HappyProject.rb:5:in `&lt;main&gt;'
  </code></pre>
  
  <p>for me it almost looks like there is a problem with the git gem so i used</p>
  
  <pre><code>gem uninstall git
  gem install git
  </code></pre>
  
  <p>still no change to the error</p>
  
  <p>iam only starting with ruby and rly cant find any solotuion for this ... </p>
  
  <p>first few lines of my script:</p>
  
  <pre><code>require 'rubygems'
  require 'win32console'
  require 'colorize'
  require 'fileutils'
  require 'git'
  
  def GREEN_TEXT() return "\033[32m" end
  def BROWN_TEXT() return "\033[33m" end
  def GRAY_TEXT()  return "\033[37m" end
  </code></pre>
  
  <p>ruby version 1.9.3p551</p>
  
  <p>git gem version 1.2.9.1</p>