Remove unneeded change

This was a red herring and should have been removed a long time ago.
Use local here for consistency
Fix showing useless duration messages
Fix errors if these values are missing

Judging from the report it's caused by Siege mod.
First pass at total AFK time tracking

and also made players who are AFK for more than a quarter of the kick
time show with AFK - in front of their name.
Move this up above the resetting parts

So we don't reset the initial move time.
Merge pull request #415 from Person8880/develop

Total AFK time tracking and minor fixes