title: Common lib on symfony2
body: <p>Before using Symfony2, I used to have a common lib with a lot of simple but useful functions (for instance, a function which takes "Azè_rtï" in argument and returns "aze-rti").</p>
  
  <p>So, well, I created a Bundle: CommonLibsBundle.</p>
  
  <p>But.. I have only one or two php files. It does not make sense to me to use a controller / view / model in this kind of situation.
  What should  I do? May I erase all folders in my new bundle (Controller, DependencyInjection, Resources, Tests... + CommonLibsBundle.php) and just put my lib.php in it?</p>
  
  <p>Many thanks,
  Bliss</p>