title: custom_require.rb:36: in `gem_original_require'
body: <p>Though I have gem installed I get following error</p>
  
  <pre><code>/rbing.rb:4: uninitialized constant RBing (NameError)
  from /Users/bhushan/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
  from /Users/bhushan/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require'
  from rbing.rb:3
  </code></pre>
  
  <p>And this error are specific to only <code>Ruby 1.8.7</code> and <code>Jruby</code> same file works on <code>1.9.2</code>. What might be broken?</p>
  
  <p>rbing.rb file looks like this</p>
  
  <pre><code>require 'rubygems'
  require 'rbing'
  bing = RBing.new("APPID")
  
  rsp = bing.web('infosys', :site =&gt; "linkedin.com")
  puts rsp.web.results[0].url
  </code></pre>