* eclean
  The starting point ideas were found here:
  http://forums.gentoo.org/viewtopic.php?t=3011
  
  Thanks to eswanson and far for their contributions, and to wolf31o2 for his
  support.  Thanks also to karltk, some of this code was at some point inspired
  by his "equery" tool.  And thanks to people who had a look on bug #33877: 
  Benjamin Braatz, fuzzyray, genone, etc.
