Fix #513 pkasyncio protect getpeername better

[robnagler]

• Saw a case where the connection was there, but the socket was not so getpeername was not found on logging. Fix Change pkdpretty or add pkdppretty #512 Add pkdebug.pkdppretty
  Fix Multiple top-level packages discovered in a flat-layout: ['run', 'pykern']. #514 Add packages.find.include so other dirs get ignored