This patch fixes the filters so they completely remove primetime values
from the licpoll2 filters. Currently the filters resets just the output value
but does not prevent the concurrent filter from comparing against 
primetime. This will cause errors in output if installation receives data from
clients in multiple timezones.

The olap-license-total-usage filter is also replaced with one that correctly
handles product and feature mapping (but this also requires patch #680
to completely fix the problem). And some additional back-end updates to
get correct average calculation.