• applied Jim Keenan's patch that makes App::Prove::run return a
  rather than exit (#33609)
  
• prove -r now recurses cwd rather than 't' by default (#33007)
  
• restored --ext switch to prove (#33848)
  
• added ignore_exit option to TAP::Parser and corresponding
  interfaces to TAP::Harness and Test::Harness. Requested for
  Parrot.
  
• Implemented rule based parallel scheduler.
  
• Moved filename -> display name mapping out of formatter. This
  prevents the formatter's strip-extensions logic from stripping
  extensions from supplied descriptions.
  
• Only strip extensions from test names if all tests have the
  same extension. Previously we stripped extensions if all names
  had /any/ extension making it impossible to distinguish tests
  whose name differed only in the extension.
  
• Removed privacy test that made it impossible to subclass
  TAP::Parser.
  
• Delayed initialisation of grammar making it easier to replace
  the TAP::Parser stream after instantiation.
  
• Make it possible to supply import parameters to a replacement
  harness with prove.
  
• Make it possible to replace either _grammar /or/ _stream
  before reading from a TAP::Parser.