title: How to maintain a system that uses php-gettext?
body: <p>I developed a system using php-gettext library and following this <a href="http://www.devin.com.br/php-gettext/" rel="nofollow">tutorial</a>. Everything worked normally and the exchange of languages is ok, but this system will undergo changes with time and new strings will emerge as well as other will leave the system.</p>
  
  <p>How do I change when the main file .pot, I do not miss the existing translations in .po files?</p>