Add "trickles" to all applications as work units are taking longer as time goes on...

My view is that the trickles should be at

25%
50%
75%
90%

But, if it is known that the work unit is going to take a while a 10% or 15% interval should be available.

Sending only the CPU time since the last trickle would be fine.

At some later date adding some program internal state debugging information to the trickle up message would be a plus.

The "Trickle API" is at
-- https://boinc.berkeley.edu/trac/wiki/TrickleMessages
-- https://boinc.berkeley.edu/trac/wiki/TrickleApi