Add sent packets to report and use startSending instead of sendPackets

if sendPackets is called before startSending is called, ScapySender is not
properly initialized
Remove unneeded commented out line
Merge branch 'aagbsn/scapyt_fixes'

* aagbsn/scapyt_fixes:
  Remove unneeded commented out line
  Add sent packets to report and use startSending instead of sendPackets
Merge remote-tracking branch 'thetorproject/master'

* thetorproject/master:
  Flatten the reporter keys
  Return something in txscapy
  Update before_i_commit script to make it work (cherry picked from commit 9cdf5596c8f16cac819afdaf1b9b537b36f796a6)
  Refactor logic for importing scapy related functions