[CollEc] path stats

[Thomas Krichel]

icanis at helos:~$ get_path_stats
count: 42308
age: 0.00159722222222222 119.728631991389 232.322094907407
done: 168

  age shows min, average and maximum age. Done shows the number of
  files done since the last RAS data update.

  At CZ's suggestion, I have added nice to new invocations of path
  calculations.

-- 
  Written by Thomas Krichel http://openlib.org/home/krichel on his 21768th day.