6.2.0: PHP7 forward compatibility

• Added forward compatibility with PHP7 - @thekid
• Changed dependency on xp-framework/webservices to ^6.1.0 - @thekid

6.1.0: Unsupported Media Type handling

• Added optional message parameter to Response::error(), status(),
  notFound() and notAcceptable() methods
  (@thekid)
• Fixed fatal error when reading body with unknown media type. This now
  returns a HTTP 415 status code ("Unsupported Media Type")
  (@thekid)
• Fixed #4 - Segments need urlencoding - @thekid

6.0.1: Hello XP6

• Changed dependency to use XP ~6.0 (instead of dev-master) - @thekid

6.0.0: Exception messages

• Improved exception message when required parameters are not found
  (@kiesel, @thekid)
• Implemented special handling of exceptions during REST handler
  construction, see xp-framework/xp-framework#345 (@thekid, @iigorr)
• Heads up: Converted classes to PHP 5.3 namespaces - (@thekid)