• If an object is passed to HTTP::Request, it must provide a canonical()
  method (Olaf Alders)
  
• Make sure status messages don't die by checking the status exists before
  checking the value range (Kent Fredric, GH #39)
  
• Add a .mailmap file to clean up the contributors list
  
• Avoid inconsistent setting of content to undef (Jerome Eteve)
  
• Simplify the way some methods are created (Tom Hukins)
  
• Remove some indirect object notation (Chase Whitener)
  
• Fix example in Pod (Tobias Leich)
  
• Add support for HTTP PATCH method (Mickey Nasriachi)