title: Rubygems and bundler broken, Psych::SyntaxError
body: <p>All of these were broken and returned the error message below. I tried everything. Deleted all my rvm stuff with rvm implode. Restarted my computer. Reinstalled rvm and ruby 1.9.3 and STILL Rubygems was broken. (Except for the rubygems that comes with OS X outside rvm, but I needed to fix rvm.)</p>
  
  <pre><code>gem
  gem -v
  gem install
  bundle install
  
  psych.rb:203:in `parse': (&lt;unknown&gt;): could not find expected ':' while scanning a simple key at line 4 column 1 (Psych::SyntaxError)
  </code></pre>
  
  <p>I tried searching google and stackoverflow, but I couldn't figure out which file is causing the problem.</p>