update notification bugfixes (#500) / speedup

[yakra]

• Closesformerly connected routes #500
  • Fixes Python bug where entries for the first chopped route in a ConnectedRoute would prevent update notifications for the last chopped route for "not in same connected route" errors.
  • Always show updates for broken entries; avoid having good entries updated before the .list file prevent them
• Closesuserlog route updates: speed yakra/DataProcessing#202
  • C++ is about 2% faster Processing traveler list files.
  • Python is faster only in theory, not noticeably so in practice. Within margin of error.

[jteresco]

In for the next update.

[yakra]

I didn't initially include a chart, because the old<->new speeds for each machine are so tiny. Barely any visible distance. LOL that's a typo. Visible difference.

Dropping this here now because it shows how the different machines stack up against one another, and more importantly, it's one more task for which I have FreeBSD data ready to go.

Normally, the caption up top would list the HighwayData & UserData commits used in the speed tests, but they were erroneously recorded as the DataProcessing commits seen in the legend on the right instead. So I just removed that info.