title: Xcode keeps guessing and interpreting with wrong encoding
body: <p>I am using Xcode 4.0.2, the latest release of Xcode. All my projects or standelone source codes are in UTF-8 encoding. But when I open some source file (C/C++/Objective C), all text is interpreted in Mac OS Roman encoding and I don't know why. I've tried remove and delete all Xcode files by uninstalling Xcode. So reinstalling doesn't help. All source codes are opened in Mac OS Roman encoding. In Xcode settings I have default encoding UTF-8 (but that is for new files I think). Also I've tried reinstall libiconv that Xcode may use for detecting encodings.</p>
  
  <p>I don't know about anything that may caused this. I didn't make any changes to my system, programs or data and I am sure, this I didn't have this problem one week ago.</p>
  
  <p>Anyone?</p>
  
  <p>Thanks,
  Martin</p>