add optional bundle time monitoring in stream processing (finally)
add output rate monitoring (because input and output rates can differ wildly w/ custom builders)
drop extra rate meter
make debug output adaptive to presence/absence of timeField
move method fields to static fields for pad helper
skip bundle time processing when timeField is not set
Merge pull request #96 from stewartoallen/at-pull-augment-stream-mapper-logging

add optional bundle time monitoring in stream processing (finally)