title: Message string messed up when sending email with Codeigniter email class
body: <p>So I encountered a problem while making a script to send email using Codeigniter's Email class. I set the configuration like this:</p>
  
  <pre><code>    $config['protocol'] = 'mail';
      $config['charset'] = 'iso-8859-1';
      $config['wordwrap'] = FALSE;
      $config['mailtype']= "html";
  </code></pre>
  
  <p>The email is successfully sent, but when I open the email (the email client is a webmail client using iso-8859-1 charset) I got some of my words messed up.</p>
  
  <p>Here's the email I want it to be:</p>
  
  <pre><code>Thank you for registering a UMall account. Here's the details of your account:
  Email: su-mie@ntu.edu.sg
  Pass: 1234567
  Fullname: Reinardus Surya Pradhitya
  Phone: 83612737
  Click here to activate your account: http://su.ntu.edu.sg/umall/index.php/register/activate/3a228e96124a66f1070361e0961854d5
  </code></pre>
  
  <p>And here's how it appears:</p>
  
  <pre><code>Thank you for registering a UMall account. Here's the details of your accou= nt:
  Email: su-mie@ntu.edu.sg
  Pass: 1234567
  Full= name: Reinardus Surya Pradhitya
  Phone: 83612737
  Click here= to activate your account: http://su.ntu.edu.sg/um= all/index.php/register/activate/3a228e96124a66f1070361e0961854d5
  </code></pre>
  
  <p>The faulty characters are always the "= ". An equal sign followed by a whitespace. Does anyone know what's wrong?</p>
  
  <p>Interestingly, I tried opening it in another email client in my mobile phone, and it appears just nice.</p>
  
  <p>EDIT: I think the problem is in the word wrapping. I can't override the setting and I can't use {unwrap}{/unwrap}. How to solve this?</p>