title: Ruby roo LoadError: cannot load such file -- spreadsheet/note
body: <p>Try load xls file and get this error. There is console log:</p>
  
  <pre><code>irb(main):001:0&gt; require 'roo'
  =&gt; true
  irb(main):002:0&gt; a = Roo::Excel.new('/home/a.xls')
  LoadError: cannot load such file -- spreadsheet/note
      from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
      from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
      from /var/lib/gems/1.9.1/gems/spreadsheet-0.9.2/lib/spreadsheet/excel/reader.rb:5:in     `&lt;top (required)&gt;'
      from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
      from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
      from /var/lib/gems/1.9.1/gems/spreadsheet-0.9.2/lib/spreadsheet.rb:28:in `&lt;top (required)&gt;'
      from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
      from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
      from /var/lib/gems/1.9.1/gems/roo-1.12.2/lib/roo/excel.rb:1:in `&lt;top (required)&gt;'
      from (irb):2
      from /usr/bin/irb:12:in `&lt;main&gt;'
  </code></pre>
  
  <p>Please help fix this problem</p>
  
  <p>Also when I try require spreadsheet I get the same error</p>
  
  <pre><code>require 'spreadsheet'
  </code></pre>
  
  <p>But this module was install</p>
  
  <pre><code>$ gem list | grep spreadsheet
  spreadsheet (0.9.2)
  </code></pre>