title: Unicode symbol in Rails' view
body: <p>I'm trying to include a degree symbol into my Rails view. If I put the degree symbol (°) straight into .html.erb file, it is displayed by browser in a normal way.</p>
  
  <p>But this symbol should be transferred to view via string. And here the problem begins.</p>
  
  <p>If I put this:</p>
  
  <pre><code>&lt;%= 176.chr %&gt;
  </code></pre>
  
  <p>into view, or put</p>
  
  <pre><code>.... + 176.chr
  </code></pre>
  
  <p>into ruby source, I get</p>
  
  <pre><code>incompatible character encodings: UTF-8 and ASCII-8BIT
  </code></pre>
  
  <p>How to make Rails recognize all views as UTF-8 by default?</p>