• fixed t/19_incr.t on perl >= 5.17.10 (wyant, rt#84154)
  pathced by mbeijen and modified with demerphq's patch
  
• Fixed some spelling (by briandfoy)
  
• fixed sppeling (by Perlover)
  
• enhanced documents (Thanks to Justin Hunter and Olof Johansson)
  
• changed backend module loading for overloaded object behavior
  (reported by tokuhirom)